|Night Gallery (1969) [Osmond Portifoy]: Presumably killed (off-screen) by Roddy McDowall after Roddy comes back from the dead; the story ends with Ossie reacting in terror to the changing painting showing Roddy emerging from the grave, but the implication of his fate is pretty clear. (Thanks to Michael)
Grumpy Old Men (1993) [Chuck]: Dies (off-screen) of a heart attack. (Thanks to Michael)
The Stand (1994) [Judge Richard Farris]: Machine-gunned (ending with an off-screen shot to the head) by Sam Raimi by the side of the road.
Get on the Bus (1996) [Jeremiah]: Dies of a heart attack on the bus. (Thanks to Michael)
Bubba Ho-Tep (2002) [John F. 'Jack' Kennedy]: Reportedly killed by the mummy (Bob Ivy). (Thanks to Val)