Maria Rodriguez-Barnes, 30, was charged with first degree premeditated murder after deputies discovered Jaxxon Rodriguez-Barnes, her son, dead on the morning of March 25. After deputies were called to The Boardwalk on Okaloosa Island’s parking lot around 8:30 a.m., they “discovered 5-month-old Jaxxon Rodriguez-Barnes seated in the left rear floorboard of the truck, slumped over a pillow,” according to a Sheriff’s Office press release. The infant had been shot once in the chest, OCSO said.A witness said they saw Rodriguez-Barnes “rolling around” outside her Nissan pickup truck shortly after she shot herself, the release said.