Homicide Squad detectives are appealing for public assistance to locate Todd Menegaldo following the serious assault of a man in the CBD earlier this week.
Investigators believe he will be able to assist with their investigation into the serious assault of a 44-year-old Seddon man on Elizabeth Street around 6.30pm on Wednesday, 9 October.
The Seddon man was walking on Elizabeth Street from Flinders Street when he was approached by a man and struck to the head.
He sustained significant head injuries and was conveyed to hospital in a life threatening condition, where he remains.
Detectives from the Homicide Squad have conducted a significant search over the past few days in an attempt to locate Menegaldo.
He is described as being approximately 180-185cm tall with a thin build.
Menegaldo also goes by the nickname 'Rooster' and has a black and white cross-breed Staffordshire terrier.
Police have released images and CCTV of Menegaldo in the hope someone can provide information regarding his current whereabouts.
He is known to frequent the Melbourne CBD, in particular the areas around Elizabeth Street and Flinders Street railway station, as well as the Mildura and Bendigo areas.
He was last seen wearing a zip up purple jumper, dark jeans and a yellow beanie.
Anyone who sights Menegaldo is urged not to approach him and to contact triple zero (000) immediately.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000 or submit a confidential report online at www.crimestoppersvic.com.au