Eminem's estranged father and namesake Marshall Bruce Mathers Jr. has died at 67 of an apparent heart attack. He was living near Fort Wayne, Indiana at the time of his death.

Eminem publically aired his issues with his father in tracks like "My Name Is" and "Cleanin' Out My Closet."

Mathers had married Em's mom when he was 22 and she was 15. Little Shady came two years later.  The marriage fell apart soon after, and Marshall moved to California, where he had two other kids.

Eminem tried to contact Marshall during his childhood, but his letters were always marked "return to sender." Marshall has claimed it was Eminem's mother who kept him away from his son.

It doesn't appear father and son ever got over their differences.

RIP.