Taupō police are calling for information about a silver sedan in relation to the death at the Adelphi Motel on Sunday.
The investigation 'Operation Dell' was launched following the death of motel resident, Ryan Woodford.
Acting area manager of investigations Detective Sergeant Andy Livingstone said a team of investigatorswas still piecing together what happened to Woodford.
"The investigation team is particularly interested in the movements of a silver sedan and its occupants, which was in the area of the Adelphi Motel at around 6.30am on Sunday morning."
"We understand these incidents can be distressing, but please be reassured we will hold any offender/s to account."
Livingstone asked anybody with any information about the vehicle or who saw it to contact Taupō Police Station and ask to speak with the Operation Dell enquiry team.
Information can also be provided to Police on 105, or to Crime Stoppers anonymously.