A second man has been charged with murder over the alleged bashing of a man at Adelaide High School last month.
The 24-year-old man from Adelaide's CBD is expected to face the Adelaide Magistrates Court tomorrow charged with murder.
Police allege Victor Codea, 24, of Ridleyton, was lured to the front car park of Adelaide High School between 9:30pm and 9:40pm on August 28.
Detective Inspector Brett Featherby said four men were present at the time of the assault and Mr Codea was "violently assaulted by three of them".
"The males left the scene in an older-model sedan and one of Victor's friends took him to the Royal Adelaide Hospital, where he received emergency surgery," he said.
"Following the assault, the vehicle was driven back to the Welland shopping centre where it was recovered by police."
Mr Codea remained in a coma after his surgery. He died from his injuries on September 5.
Earlier this month, a 23-year-old man, also from the CBD, had his charge of aggravated assault causing serious harm upgraded to murder after Mr Codea's death.
Police say they expect to make further arrests.
Inspector Featherby said police suspected the assailants wrongly believed Mr Codea, who had faced drug charges, was a police informant.
"He has made some bad choices, but unfortunately those bad choices have cost him his life," he said.
"We believe that he's actually been wrongly accused of providing information to police and we have no knowledge whatsoever that he's provided any information to police."
His Facebook account appears to have been hacked, with his occupation listed as "police informer".
Police urged anyone who was near Adelaide High School or the Welland Plaza Shopping Centre on the night of August 28 and noticed Mr Codea's white 2019 Toyota Corolla with South Australian registration S331CAE to contact Crime Stoppers.
