A former NFL linebacker was found dead in Florida early on Thursday after an apparent drug overdose, police said. He was 53. Keith McCants, the Tampa Bay Buccaneers first-round pick of the 1990 NFL Draft, was found dead inside his home in St. Petersburg. Police responded to a 911 call at about 5:10 a.m. that was made by another resident who also lives at the location, the Pinellas County Sheriff’s Office told The Associated Press in an email. “It appears it was a drug overdose, but we are awaiting confirmation from the medical examiner’s office,” sheriff’s spokesperson Amanda Sinni said. “This is still an open investigation.” McCants, an Alabama native, played six seasons in the NFL with three different teams. His professional football career started in 1990 for Tampa where he recorded 12 sacks and assisted in 156 tackles. The Buccaneers made him the fourth overall pick in the NFL draft the year …