How to jail a Kineticist

I am running a Pathfinder game in which a L5 Kineticist (fire and aether elements) decided he wanted to go kill an angel more or less on his own. He got his ass kicked, but the Angel does not want to kill him, but rather incarcerate him somehow. If it was a wizard, a gag in the mouth and restraints on his fingers would do it, but how would one go about keeping a Kineticist locked up?

The kineticist is level 12, the specific angel is an Astral Deva.