Mike Jacobs, the convicted steroids dealer who was found dead on Thursday, killed himself, according to a report on ESPN.com. A Dallas County medical examiner determined the suicide on Friday. Plano police found Jacobs, 35, and his girlfriend dead of gunshot wounds Thursday in his Plano home. A Glock 40 semi-automatic handgun was found beside Jacobs' body; no other firearms were found in the home, Plano police officer Andrae Smith said.