NZ Herald
  • Home
  • Latest news
  • Herald NOW
  • Video
  • New Zealand
  • Sport
  • World
  • Business
  • Entertainment
  • Podcasts
  • Quizzes
  • Opinion
  • Lifestyle
  • Travel
  • Viva
  • Weather

Subscriptions

  • Herald Premium
  • Viva Premium
  • The Listener
  • BusinessDesk

Sections

  • Latest news
  • New Zealand
    • All New Zealand
    • Crime
    • Politics
    • Education
    • Open Justice
    • Scam Update
    • The Great NZ Road Trip
  • Herald NOW
  • On The Up
  • World
    • All World
    • Australia
    • Asia
    • UK
    • United States
    • Middle East
    • Europe
    • Pacific
  • Business
    • All Business
    • MarketsSharesCurrencyCommoditiesStock TakesCrypto
    • Markets with Madison
    • Media Insider
    • Business analysis
    • Personal financeKiwiSaverInterest ratesTaxInvestment
    • EconomyInflationGDPOfficial cash rateEmployment
    • Small business
    • Business reportsMood of the BoardroomProject AucklandSustainable business and financeCapital markets reportAgribusiness reportInfrastructure reportDynamic business
    • Deloitte Top 200 Awards
    • Deloitte Fast 50
    • Generate wealth weekly
    • CompaniesAged CareAgribusinessAirlinesBanking and financeConstructionEnergyFreight and logisticsHealthcareManufacturingMedia and MarketingRetailTelecommunicationsTourism
  • Opinion
    • All Opinion
    • Analysis
    • Editorials
    • Business analysis
    • Premium opinion
    • Letters to the editor
  • Politics
  • Sport
    • All Sport
    • OlympicsParalympics
    • RugbySuper RugbyNPCAll BlacksBlack FernsRugby sevensSchool rugby
    • CricketBlack CapsWhite Ferns
    • Racing
    • NetballSilver Ferns
    • LeagueWarriorsNRL
    • FootballWellington PhoenixAuckland FCAll WhitesFootball FernsEnglish Premier League
    • GolfNZ Open
    • MotorsportFormula 1
    • Boxing
    • UFC
    • BasketballNBABreakersTall BlacksTall Ferns
    • Tennis
    • Cycling
    • Athletics
    • SailingAmerica's CupSailGP
    • Rowing
  • Lifestyle
    • All Lifestyle
    • Viva - Food, fashion & beauty
    • Society Insider
    • Royals
    • Sex & relationships
    • Food & drinkRecipesRecipe collectionsRestaurant reviewsRestaurant bookings
    • Health & wellbeing
    • Fashion & beauty
    • Pets & animals
    • The Selection - Shop the trendsShop fashionShop beautyShop entertainmentShop giftsShop home & living
    • Milford's Investing Place
  • Entertainment
    • All Entertainment
    • TV
    • MoviesMovie reviews
    • MusicMusic reviews
    • BooksBook reviews
    • Culture
    • ReviewsBook reviewsMovie reviewsMusic reviewsRestaurant reviews
  • Travel
    • All Travel
    • News
    • New ZealandNorthlandAucklandWellingtonCanterburyOtago / QueenstownNelson-TasmanBest NZ beaches
    • International travelAustraliaPacific IslandsEuropeUKUSAAfricaAsia
    • Rail holidays
    • Cruise holidays
    • Ski holidays
    • Luxury travel
    • Adventure travel
  • Kāhu Māori news
  • Environment
    • All Environment
    • Our Green Future
  • Talanoa Pacific news
  • Property
    • All Property
    • Property Insider
    • Interest rates tracker
    • Residential property listings
    • Commercial property listings
  • Health
  • Technology
    • All Technology
    • AI
    • Social media
  • Rural
    • All Rural
    • Dairy farming
    • Sheep & beef farming
    • Horticulture
    • Animal health
    • Rural business
    • Rural life
    • Rural technology
    • Opinion
    • Audio & podcasts
  • Weather forecasts
    • All Weather forecasts
    • Kaitaia
    • Whangārei
    • Dargaville
    • Auckland
    • Thames
    • Tauranga
    • Hamilton
    • Whakatāne
    • Rotorua
    • Tokoroa
    • Te Kuiti
    • Taumaranui
    • Taupō
    • Gisborne
    • New Plymouth
    • Napier
    • Hastings
    • Dannevirke
    • Whanganui
    • Palmerston North
    • Levin
    • Paraparaumu
    • Masterton
    • Wellington
    • Motueka
    • Nelson
    • Blenheim
    • Westport
    • Reefton
    • Kaikōura
    • Greymouth
    • Hokitika
    • Christchurch
    • Ashburton
    • Timaru
    • Wānaka
    • Oamaru
    • Queenstown
    • Dunedin
    • Gore
    • Invercargill
  • Meet the journalists
  • Promotions & competitions
  • OneRoof property listings
  • Driven car news

Puzzles & Quizzes

  • Puzzles
    • All Puzzles
    • Sudoku
    • Code Cracker
    • Crosswords
    • Cryptic crossword
    • Wordsearch
  • Quizzes
    • All Quizzes
    • Morning quiz
    • Afternoon quiz
    • Sports quiz

Regions

  • Northland
    • All Northland
    • Far North
    • Kaitaia
    • Kerikeri
    • Kaikohe
    • Bay of Islands
    • Whangarei
    • Dargaville
    • Kaipara
    • Mangawhai
  • Auckland
  • Waikato
    • All Waikato
    • Hamilton
    • Coromandel & Hauraki
    • Matamata & Piako
    • Cambridge
    • Te Awamutu
    • Tokoroa & South Waikato
    • Taupō & Tūrangi
  • Bay of Plenty
    • All Bay of Plenty
    • Katikati
    • Tauranga
    • Mount Maunganui
    • Pāpāmoa
    • Te Puke
    • Whakatāne
  • Rotorua
  • Hawke's Bay
    • All Hawke's Bay
    • Napier
    • Hastings
    • Havelock North
    • Central Hawke's Bay
    • Wairoa
  • Taranaki
    • All Taranaki
    • Stratford
    • New Plymouth
    • Hāwera
  • Manawatū - Whanganui
    • All Manawatū - Whanganui
    • Whanganui
    • Palmerston North
    • Manawatū
    • Tararua
    • Horowhenua
  • Wellington
    • All Wellington
    • Kapiti
    • Wairarapa
    • Upper Hutt
    • Lower Hutt
  • Nelson & Tasman
    • All Nelson & Tasman
    • Motueka
    • Nelson
    • Tasman
  • Marlborough
  • West Coast
  • Canterbury
    • All Canterbury
    • Kaikōura
    • Christchurch
    • Ashburton
    • Timaru
  • Otago
    • All Otago
    • Oamaru
    • Dunedin
    • Balclutha
    • Alexandra
    • Queenstown
    • Wanaka
  • Southland
    • All Southland
    • Invercargill
    • Gore
    • Stewart Island
  • Gisborne

Media

  • Video
    • All Video
    • NZ news video
    • Herald NOW
    • Business news video
    • Politics news video
    • Sport video
    • World news video
    • Lifestyle video
    • Entertainment video
    • Travel video
    • Markets with Madison
    • Kea Kids news
  • Podcasts
    • All Podcasts
    • The Front Page
    • On the Tiles
    • Ask me Anything
    • The Little Things
  • Cartoons
  • Photo galleries
  • Today's Paper - E-editions
  • Photo sales
  • Classifieds

NZME Network

  • Advertise with NZME
  • OneRoof
  • Driven Car Guide
  • BusinessDesk
  • Newstalk ZB
  • Sunlive
  • ZM
  • The Hits
  • Coast
  • Radio Hauraki
  • The Alternative Commentary Collective
  • Gold
  • Flava
  • iHeart Radio
  • Hokonui
  • Radio Wanaka
  • iHeartCountry New Zealand
  • Restaurant Hub
  • NZME Events

SubscribeSign In

Advertisement
Advertise with NZME.
Home / New Zealand / Crime

Shamah Riley’s surprise attack on Nelson Woolworths manager ‘appalling and upsetting’

Tracy Neal
By Tracy Neal
Open Justice multimedia journalist, Nelson-Marlborough·NZ Herald·
3 Sep, 2025 07:00 AM5 mins to read

Subscribe to listen

Access to Herald Premium articles require a Premium subscription. Subscribe now to listen.
Already a subscriber?  

Listening to articles is free for open-access content—explore other articles or learn more about text-to-speech.
‌
Save
    Share this article
Woolworths NZ says the unprovoked attack on a staff member at one of its Nelson stores was "appalling and upsetting". Shamah Riley has now admitted to assaulting a duty manager. Photo / Tracy Neal

Woolworths NZ says the unprovoked attack on a staff member at one of its Nelson stores was "appalling and upsetting". Shamah Riley has now admitted to assaulting a duty manager. Photo / Tracy Neal

A supermarket duty manager stocking shelves was left with facial injuries after a man punched him in the head, then kicked him as he lay on the ground, in a brutal surprise attack.

The assault has shaken the man’s employer, Woolworths NZ, which told NZME that despite its investment in a range of security measures, team members were still being threatened and hurt in broad daylight.

Shamah Riley has now pleaded guilty to the attack, which happened on the evening of January 20 this year.

Police said it came after he attacked a person he was staying with, when he had nowhere else to go, a few months earlier.

Advertisement
Advertise with NZME.
Advertisement
Advertise with NZME.
Woolworths NZ says it's unfortunate that staff too often found themselves in harm’s way when they were “just doing their jobs”. Photo / Tracy Neal
Woolworths NZ says it's unfortunate that staff too often found themselves in harm’s way when they were “just doing their jobs”. Photo / Tracy Neal

Then, the day after he was arrested for the supermarket assault and placed in custody, he tried to strangle another prison inmate over a piece of bread.

No warning

The manager had been restocking shelves at Woolworth’s Trafalgar Park in central Nelson when, without warning, he was punched and beaten.

Riley had approached and asked if he was putting the items “out”.

The manager explained he was putting items on shelves.

Advertisement
Advertise with NZME.

With his back turned, Riley punched him in the head with a closed fist, which knocked him to the ground.

Riley then kicked him twice in the head, splitting his eyebrow open.

Police said a staff member tried to intervene, and Riley stepped back, but then kicked a box out of the way and continued to kick the manager as he lay on the ground.

As the manager tried to get up, Riley struck him again in the head with a closed fist.

He was left with a deep cut and a swollen face.

Woolworths NZ head of health, safety and wellbeing, Denva Wren, said the unprovoked attack was appalling.

“The increasing level of abuse our team members are facing daily is completely unacceptable and hugely upsetting.

“We take the safety of our team members very seriously, and they should be able to come to work and feel safe.”

Wren said it was unfortunate that staff too often found themselves in harm’s way when they were “just doing their jobs”.

The police arrived and arrested Riley at the store’s front entrance. He tried to run away, but was quickly caught.

Advertisement
Advertise with NZME.

Guilty pleas entered

Riley, who has just turned 26, has now pleaded guilty in the Nelson District Court to several related charges, plus others that occurred around the same time.

He appeared in court via video link from prison, where he was being held on remand, and admitted charges in relation to the supermarket attack, including two charges of assault with intent to injure, injuring with intent to injure with reckless disregard, common assault and escaping police custody.

Riley moved to the Tasman region in September last year and was staying with a person known to him when he attacked that person.

They were together at an address on the morning of September 15, with Riley having arrived the day before.

Police said Riley was “acting erratically” and began removing items from the bedroom.

The victim confronted him as he tried to remove a mattress, and without warning Riley punched her in the back with enough force to knock her off her feet.

Advertisement
Advertise with NZME.

He continued to “rampage around the house”, throwing items outside and punching a wall and two doors, damaging both.

He was arrested and charged with assault on a person in a family relationship and wilful damage.

Riley then attacked the supermarket manager, and while he was in custody for that, he attacked another inmate as the pair ate dinner.

He has now also admitted charges of strangulation and assault with intent to injure, after the attack on the fellow prisoner on the evening of January 21 this year.

Riley and the other prisoner were in the dayroom area of the cellblock having dinner when the victim asked for more bread.

Riley told him he would fight him for it, which the victim took as a joke and laughed it off.

Advertisement
Advertise with NZME.

“Out of nowhere, the defendant punched the victim in the head with a closed fist,” police said.

As the victim got up to try to defend himself, Riley got him in a headlock, then dropped his weight backwards, forcing the victim’s head on to the concrete floor.

Riley held the lock around the victim’s neck for about 25 seconds, restricting his breathing.

Police said it took two officers to loosen Riley’s grip on the victim, who was left with cuts and concussion symptoms.

Riley has been further remanded in custody for sentencing in November.

In April 2024, Woolworths rolled out body cameras at all its 191 stores as part of staff safety measures, citing a 75% increase in physical assaults and 148% increase in “serious reportable events” in the three years prior.

Advertisement
Advertise with NZME.

Wren said the company would continue to work closely with police to combat any sort of abuse towards its team members.

Tracy Neal is a Nelson-based Open Justice reporter at NZME. She was previously RNZ’s regional reporter in Nelson-Marlborough and has covered general news, including court and local government for the Nelson Mail.

Save
    Share this article

Latest from Crime

Crime

'No one's going to be safe': Neighbour recalls woman's chilling words before fires were lit

Crime

'Scared of a bit of water?': Man hoses officers in Cambridge

New Zealand

'I stand here broken': Mum confronts attacker who stabbed her and toddler, then killed baby


Sponsored

NZ’s convenience icon turns 35

Advertisement
Advertise with NZME.

Latest from Crime

'No one's going to be safe': Neighbour recalls woman's chilling words before fires were lit
Crime

'No one's going to be safe': Neighbour recalls woman's chilling words before fires were lit

Maya Moore denies setting fires at two Wairarapa properties in 2022.

03 Sep 08:00 AM
'Scared of a bit of water?': Man hoses officers in Cambridge
Crime

'Scared of a bit of water?': Man hoses officers in Cambridge

03 Sep 06:04 AM
'I stand here broken': Mum confronts attacker who stabbed her and toddler, then killed baby
New Zealand

'I stand here broken': Mum confronts attacker who stabbed her and toddler, then killed baby

03 Sep 04:00 AM


NZ’s convenience icon turns 35
Sponsored

NZ’s convenience icon turns 35

02 Sep 09:23 PM
NZ Herald
  • About NZ Herald
  • Meet the journalists
  • Newsletters
  • Classifieds
  • Help & support
  • Contact us
  • House rules
  • Privacy Policy
  • Terms of use
  • Competition terms & conditions
  • Our use of AI
Subscriber Services
  • NZ Herald e-editions
  • Daily puzzles & quizzes
  • Manage your digital subscription
  • Manage your print subscription
  • Subscribe to the NZ Herald newspaper
  • Subscribe to Herald Premium
  • Gift a subscription
  • Subscriber FAQs
  • Subscription terms & conditions
  • Promotions and subscriber benefits
NZME Network
  • The New Zealand Herald
  • The Northland Age
  • The Northern Advocate
  • Waikato Herald
  • Bay of Plenty Times
  • Rotorua Daily Post
  • Hawke's Bay Today
  • Whanganui Chronicle
  • Viva
  • NZ Listener
  • Newstalk ZB
  • BusinessDesk
  • OneRoof
  • Driven Car Guide
  • iHeart Radio
  • Restaurant Hub
NZME
  • About NZME
  • NZME careers
  • Advertise with NZME
  • Digital self-service advertising
  • Book your classified ad
  • Photo sales
  • NZME Events
  • © Copyright 2025 NZME Publishing Limited
TOP