POLICE have called on the public to help find a mobile phone, which could hold a key to the murder investigation of an autistic Scarsdale teenager this year.
Timmy O'Brien, 14, died on January 5 after allegedly being struck to the head with a blunt weapon in Scarsdale.
Homicide Squad Detective Sergeant Sol Solomon said he could provide no details on who owned the phone, how it was connected to the investigation or whether police believed someone had removed it from the murder scene.
"We don't want to release that level of of information at this point," he said.In an out of sessions hearing earlier in the year, it was alleged Timmy and his stepfather Paul Williams drove to a Carlyle Street address to help two teenage girls.
It's alleged one of the girls had received a threatening phone call.
An altercation occurred occurred when the pair arrived at the home, which led to Timmy's death just before 5am.
The Homicide Squad have asked for public assistance to locate a mobile phone connected to the incident.
Detectives would only say it might "provide information which will assist" the investigation.
The phone is described as a ZTE Racer-Android Smartphone and investigators have released an image of a similar phone.
Anyone with information can call Crime Stoppers on 1800 333 000.