The actual question is "What is the name of the ghost that allegedly
inhabits Powers Auditorium" (in Youngstown, OH) (formerly the Warner
Theatre (and the answer is NOT Sam Warner!))?

Talking to the workers at Powers Auditorium, they do not know, but
indicated that there was a person killed in the theatre, presumably
when it was being renovated (which happened in the 1968-69 time
period).  I have searched the Internet and have come up with nothing. 
I don't know if a newspaper database search would help or if someone
has a book regarding Youngstown folklore that would have the answer.  
Thanks!

This is similar to the Manila Film Center in the Philippines:

http://members.tripod.com/putay/_reqdis/00000033.htm

http://theshadowlands.net/places/philippines.htm

It is said that during its construction, scaffolding gave way and led
to some worker's deaths and others getting injured. But instead of
bringing the injured workers to the hospitals, they were left there
and buried in cement because the construction of the place was so
terribly rushed (supposedly Imelda Marcos's decision), and so their
ghosts are said to haunt the place.