Newark Mayor Cory Booker says today is a day of mourning for his community. A 45 year old off duty veteran police officer was shot and killed when he ordered a slice of pizza. Police in Newark say William Johnson, a 16 year veteran of the police departemnt, lost his life Thursday night while he ordered some food. Two others were also shot. Police believe Johnson was the victim of a random drive by shooting in the city. Johnson lost his life shortly after 3am Friday. So far, one suspect has been arrested and police are looking for a second suspect.