A father was fatally shot in front of his family after an argument over a handicapped parking spot, according to Pinellas County deputies.The daytime shooting occurred at the Circle A Food Store located at 1201 Sunset Point Road in Clearwater on Thursday. Detectives said 24-year-old Britany Jacobs parked her 2016 Chrysler 2000 in a handicapped parking space outside the store.Her boyfriend, 28-year-old Markeis McGlockton, and their 5-year-old son Markeis McGlockton Jr., exited Jacob's vehicle and entered the convenience store, detectives said. As Jacobs waited outside the parking lot, detectives said the shooter, 47-year-old Michael Drejka, approached her.Both got into an argument over the handicapped parking space, detectives said. A witness notified the store clerk of the argument, and McGlockton exited the store and approached Drejka. Detectives said they were told by witnesses that McGlockton pushed Drejka, causing him to fall to the ground.McGlockton was transported to Morton Plant Hospital with life-threatening injuries, but passed away from those injuries about 30 minutes after the shooting occurred, investigators said.