Police in San Antonio are still searching for the killer who approached Det. Benjamin Marconi's patrol cruiser and then shot him twice through the passenger window. Hours before the 20-year police veteran was killed, authorities say the suspect entered the headquarters, according to footage. The shooter is now the subject of a massive manhunt in the Lone Star state. "The uniform was the target," said Chief William McManus. “We consider this suspect to be extremely dangerous to the police and the public."