Four arrested over killing of former General Hospital actor Johnny Wactor

Friends and supporters of late actor Johnny Wactor, pictured left, hold a news conference to demand justice for the former General Hospital actor during a news conference outside Los Angeles City Hall on Tuesday (Damian Dovarganes/AP)

Police in Los Angeles have arrested four people over the fatal shooting of former General Hospital actor Johnny Wactor.

Robert Barceleau, Leonel Gutierrez and Sergio Estrada, all 18 years old, were booked on arrest warrants for murder.