BODY COUNT (spoilers!!!)
The pregnant women at the start don't count since they survived...
1, 2. Blind guy and his dog - fall from 91 stories
3. security guard (poor guy!) - decapitated
4. rollerblader - sucked into elevator and shot out from 86th floor observation deck (splattered on the sidewalk)
5. elevator repairman - strangled, bled to death... not actually done by the elevator
6. other elevator repairman (previous) - same as #5 (not a suicide as previously claimed)
7 -> 20 (or so). an elevator full of people, including children - floor gave way and everyone fell, then elevator slammed into the roof
21. police officer - cut in half by falling elevator far (since decapitation earlier in the film wasn't enough I guess)
22. the "bad" guy - strung up and hanged
Now, why did the repairman die? That served no purpose. I feel bad for the cop, kinda. And really bad for the security guard!
Who I wish HAD been killed off: not the elevator load of people (I hate when non-developed characters die!)... Okay, so kill off the jerk and his friends from the diner earlier. Kill off the elevator company president. Kill off the nasty nursery nanny...
Come on! There was so much better room to kill off characters than having random rollerbladers get sucked into the shaft or kill off kids. Geez!