A 23-year-old Florida sheriff’s deputy was fatally shot by his fellow deputy roommate over the weekend, in what the sheriff described as a “clearly dumb and avoidable accident.”Brevard County Sheriff’s Office deputy Austin Walsh was killed Saturday morning in Palm Bay by his roommate Andrew Lawson, Sheriff Wayne Ivey said in a Sunday news conference.The two were taking a break from playing online games with friends and were standing and talking together when Lawson, who believed he had unloaded his gun, “jokingly” pointed the weapon at Walsh and pulled the trigger, Ivey said, citing the probe by the Florida Department of Law Enforcement and the Palm Bay Police Department.Following the investigation, Lawson was taken into custody Sunday on a no-bond warrant on a manslaughter charge by the the Florida Department of Law Enforcement and transported to the Brevard County jail, Ivey said.“Folks this unnecessary and totally avoidably incident not only took the life of an amazing young man and deputy, but it has forever changed the life of another good young man who made an extremely poor and reckless decision,” Ivey said.Walsh had served with the agency since he was 18 and was part of its Explorers youth program before that, according to the Brevard County Sheriff's Office Facebook page."