Detailed text transcripts for TV channel - MSNBC - 20150427:17:08:00
>> nbc's john yang from colorado. we are now an hour away from this to begin. legal experts say this will down to an insanity plea? >> reporter: that's right. the defense offered to plead guilty for exchange in life in prison without parole. that was turned down by the prosecution. they're now arguing this was done in a psychotic break. now the challenge proving is this to jurors is the fact james holmes apparently planned this. he bought a lot of ammunition had a plan doing this in the theater. he booby trapped his armt. that the prosecution says shows this was a calculated act of anger and r...