sentences:  Jeff anxiously jitters in his wheelchair, and grabs his telephoto camera to watch the situation unfold, eventually calling the police because Miss Lonelyhearts is contemplating suicide in the neighboring apartment.Chillingly, Jeff watches Lisa in Thorwald's apartment rather than keeping an eye on the woman about to commit suicide.Thorwald turns off the lights, shutting off Jeff's sole means of communication with and protection of Lisa; Jeff still pays attention to the pitch-black apartment instead of Miss Lonelyhearts.