Kansas City Chiefs defensive end B.J. Thompson left the hospital on Monday afternoon to return home four days after suffering a seizure and going into cardiac arrest at OTAs last week. Thompson spent four days in the hospital but he is now back on the mend with a solid prognosis. The Chiefs defender’s agent, Chris Turnage, shared an update with NFL insider Tom Pelissero on Monday night, saying that Thompson’s return home is a big step forward. “The family thanks everyone for their prayers and wants to especially thank the Chiefs medical and training staff for their rapid response and professio…