A San Diego police officer has been suspended without pay amid allegations that he posted a photo on social media that appeared to make light of a makeshift memorial for a man the officer and a partner fatally shot in late June, police Chief David Nisleit announced Tuesday.

The chief also said Officer Jonathon Lucas, who has been on the force for about four years, was stripped of his police powers — forced to give up his gun and badge — while the Police Department investigates the matter.