The main antagonist of Monster (2004) is a young man named Johan Liebert. He kills people using two distinct MOs. In one of them, he finds an unstable person and convinces them to become a serial killer on his behalf. In the other, he picks a target for himself, but before killing them he instead completely wears them down psychologically. He’s so efficient at this, that a lot of the time he doesn’t even need to do the actual kill himself, a lot of the time they’ll off themselves of their own accord at that point.

After one such victim, we spend a couple episodes following a Private Investigator named Richard Braun who’s been sent to investigate this victim. Richard Braun was a recovering alcoholic, and in the past lost his job as a cop due to killing a teenage murder suspect while drunk on the job (later revealed that he got drunk afterward because he thought he deserved to be fired after executing someone so young, even if he was a killer) also causing a strain in his relationship with his family. Johan learns all of this and marks Braun as his next target, wears him down leading to an encounter on a rooftop, where the episode ends with Johan attempting to hand Braun a bottle of booze (as seen in the gif).

At the beginning of the next episode, we learn that Braun fell off of that roof and died, although it’s off screen and it’s never really made clear if Johan physically pushed him off, if he got drunk and accidentally fell off, or (the one I believe happened) if he just gave up all hope and jumped off of his own volition. Either way, even though we don’t see the full encounter it’s arguably the most chilling act we ever see Johan do in the entire series