Fringe/Recap/S01 E17

Season 1, Episode 17:

Bad Dreams
Olivia dreams of pushing a woman she's never met into the path of a subway train in New York. The next morning, she learns that the woman in her dream is real and that she actually died in the same way, but there was nobody else around and the death is ruled a suicide. After another death, Olivia fears that she's somehow astral-projecting herself across the country and committing murders, but as the Fringe team investigates, they learn that her dreams are the results of the cortexiphan experiments: as preparation for the conflict described in the ZFT manifesto, Walter and William Bell experimented on several dozen children and the one that Olivia was buddied with, Nick Lane, has the ability to project his emotions into other people. His depression and suicidal tendencies are causing people to kill themselves or other people, and because of the psychic link established between Olivia and Lane as children, she is seeing his murders in her dreams.

At the end of the episode, Olivia is forced to shoot Lane (non-fatally) to keep him from jumping off the roof of a building and taking a dozen people with him. Lane is placed in a medically-induced coma to keep his abilities from affecting anyone else. Walter digs out a videotape from his files, one on which he and William Bell documented the aftermath of a pyrokinetic incident caused by "Olive" -- young Olivia Dunham.