A man who admitted killing three people at a Colorado Planned Parenthood clinic is returning to court for the continuation of a hearing on whether he's mentally competent to stand trial.

A psychologist who examined 57-year-old Robert Dear is scheduled to testify Tuesday.

Dear is charged with 179 counts including murder, attempted murder and assault in the Nov. 27 shootings at the Colorado Springs clinic. Nine people were injured in the attack.

In court, he has declared himself a "warrior for the babies" and said he was guilty.

The hearing started last month, when two psychologists testified that Dear isn't competent to stand trial.

If the judge agrees, Dear's case would be put on hold while he undergoes treatment at a state psychiatric hospital intended to restore him to competency.