"Smokey wasn't run over, she was actually deliberately hurt by someone, which was completely unnecessary."
If the trauma of the incident wasn't enough, the vet bill has burdened the family.
But there is a light at the end of the tunnel.
Since the shooting, two women offered to help O'Hearn and Smokey.
Te Awamutu's Kris Lawry and her mother Noeline Gaye have gone door-knocking at Te Awamutu businesses to fundraising for the vet bill and raise awareness.
Lawry says she and her mother have always been massive animal lovers, so it was a no-brainer for them to help.
Lawry says if she could she would pay the bill herself.
"It's really important that we expose to the public what's happening," she says.
"I think that it is just so bad and this needs to stop."
The support O'Hearn is receiving from the mother-daughter duo has blown her away and reassures her there are still good people in the community.