(AP) — The Nebraska Supreme Court has rejected the arguments of a convicted killer who says he was too heavily medicated on anti-psychotic drugs to be competent to stand trial.

Todd Baker appealed after his request for a hearing on his post-conviction relief motion was denied last year by a Lancaster County District judge. Baker wants a chance to show that his convictions were unconstitutional.

The 50-year-old Baker was convicted in 2006 in the 1996 killing of Anne True after Baker’s ex-wife went to police with information in the case. In 2007, while already serving a life sentence for True’s death, Baker was convicted of killing 15-year-old Missy Schmidt.

Police say Baker randomly attacked both women with a hammer and dumped their bodies in rural ditches.