Lost - Season 0 Episode 22

Juliet is outside Room 23 where there is some sort of commotion and an alarm sounding. Ben arrives and Juliet tells him that he (presumably Walt) has done something again and that everybody is too scared to go in there. Juliet suggests that they could bring him back to Michael, but Ben refuses. Ben tells her that Walt is special and that Jacob wanted him there, but Juliet says that he is dangerous. When Ben counters that he is only a child, Juliet brings him outside to show what he has done: a group of dead birds lay on the stairwell.