Although he died on July 20, 2005- the 36th anniversary of the first manned moon landing- Jimmy Doohan is and will remain immortal, thanks to his portrayal of Montgomery Scott, Star Trek's iconic chief engineer.
His fans are legion and include the first human to walk on the moon, engineer and astronaut Neil Armstrong. Notorious for avoiding the public eye, the reclusive astronaut nonetheless attended a 2004 Star Trek convention marking Doohan's last public appearance. Shaking the actor's hand, Armstrong said, "From one old engineer to another- thanks, mate."
When I think of Scotty, I don't recall a wheelchair-bound Alzheimer victim being honored by fans at a sad farewell event. Here's how I remember him:
Instead of using aft thrusters, the U.S.S. Enterprise muscles out of spacedock at one-quarter impulse power. Mr. Scott is amused. The ensign, not so much. (from Star Trek VI: The Undiscovered Country, ©1991 Paramount Pictures Corp.)