He is DEAD. The series is over. There's no point in citing Sara's dead. Just because you are acting like a pathetic fan boy and crying because Michael's dead doesn't give you the right to post speculation. The movie makes it clear that he killed himself via electrocution. you are right about the body though it's quite possible that Sara was later exonerated after the escape. She even tells her son "Let's go visit your father" so it's possible that his body was later given to Sara and Lincoln.