Bryan Kohberger tells a judge he is guilty of killing 4 University of Idaho students

Bryan Kohberger's attorneys had done what they could to spare his life.

They tried to bar prosecutors from seeking the death penalty in the stabbing deaths of four University of Idaho students on an array of grounds — that it would violate standards of decency or flout international law, that prosecutors had failed to provide evidence properly, that their client's autism diagnosis reduced any possible culpability.