i want this -.- townsided ceptor sounds cool. the fact it could possibly kill town PRs balances the fact it can kill maf PRs. (cop+stalker on the trapped target, for example)
It's not overpowered, because it only lasts for one night, and only kills 1 person at most. It makes a lot of sense as townsided, because it isn't for killing the person you target. The thing is, the person in the most danger is people with multiple visits, which is a LOT of the Mafia (I'm looking at Driver here), as well as Santa and the Baker.
I would like to note that it should not kill people who have auto-selfvisiting, like the Priest, or situational, like the Mimic and Amnesiac (They self-visit when they role change, right?). However, choosing to target yourself, like the Shrink or Enforcer WOULD cause you to trigger a trap on yourself. It just seems to make more sense.
If more than one person visits trapper's target, those that don't die learn who trapper are.