Ice bullets

You’d have to read the book. It’s about getting away with murder in a world that has powerful telepaths.

…and leaving a 2" hole through the intervening tissue, all of which is vasculated. Seriously, when you put holes in people, they bleed. I thought this was common knowledge.

But Columbo figures it out anyway.

Tenser, said the Tensor…

Could bullets that have to be hyper-cooled cause the gun to mis-fire?