(WPXI) – Police have issued an arrest warrant for a man they say is responsible for the deadly shooting at Monroeville Mall last week. Police accuse Lawrence Mark Murphy, 20, of shooting Saheed Gayle in the parking lot of Monroeville Mall on Oct. 7. Gayle was taken to a hospital, where he died. Homicide detectives said evidence showed the shooting occurred during an argument and that Gayle was not randomly targeted. Murphy is facing criminal homicide and weapons violations. Police said he had ties to the Braddock area. Anyone who sees Murphy should call 911 or Allegheny County police.