Veen

I would've just closed the box right when the head popped up. Literally.

Man, I want an ankle gun like that too.

The creepy smile itself was literally a big giveaway to show that he's a deranged serial killer.

The aliens gave time to make him feel comfortable in a unfamilliar place, whilst the humans treated him poorly and compelled him to do something he didn't want to. One of the reasons why they forcefully chose him was probably because his life was seen as “less important” because he isn’t married or doesn’t have kids. But in reality, he has dozens of them, all the beloved kids that he teached :(