Short Back story: Nathan was a glue factory worker
Hobby: Loves creating puppets
He's creating a special puppet made of a titanium and needs a stronger glue to stick its parts together.
he starts by killing medium animals like monkeys, turtles etc from the local zoo using their tissues to create glue - this will be shown through the news saying animals have been going missing from the local zoo..( having a a close up shot of the TV the a jump cut to the character face with an evil smile of obsession).
he noticed the glue isn't still as strong so he decides to go for a bigger animal perhaps a chimera or so.
sneaks in the zoo by climbing over with a ladder, made it inside then gets surrounded by wolves, tigers or Chimera
last scene shows hes skull being licked by the animal or his bones being juggled by a monkey.