premise: Glenn Martin Christopher Francis Quinn (May 28, 1970 – December 3, 2002) was an Irish actor in television and film, known for playing Mark Healy in the American sitcom "Roseanne", and Doyle, a half-demon, on "Angel", a spin-off series of "Buffy the Vampire Slayer".
hypothesis: Glenn Martin Christopher Francis Quinn lived to be 32 years old.
reason: If Glenn Martin Christopher Francis Quinn was born in May of 1970 and died December 3 of 2002, then that would make him 32.