A man has been arrested in connection with the murders of three homeless men, and authorities believe he is also linked to another homicide in San Dimas. At a press conference on Saturday afternoon, Los Angeles Police Department Chief Michel Moore identified the suspect as Jerrid Joseph Powell, 33, of Los Angeles. Powell is alleged to be the gunman behind the murders of three homeless men across Los Angeles from Nov. 26 to Nov. 29. It was confirmed on Saturday that he is also the prime suspect in the follow-home murder of Nicholas Simbolon of San Dimas on Tuesday night....