DENVER (AP) -- Prosecutors say Nathan Dunlap harbors evil in his heart and deserves to be executed for killing four people 19 years ago.
Defense lawyers say Dunlap was afflicted by an untreated mental illness at the time of the crime and now is remorseful for what he did. They argue he should be spared.
In the middle is Colorado Gov. John Hickenlooper. He's consulted with victims' families, attorneys, investigators and others as he ponders whether to grant clemency to Dunlap.
Dunlap is scheduled to be executed in August. His attorneys are asking for clemency and have been filing last-ditch appeals and lawsuits.
Hickenlooper hasn't said when he will decide.
A jury convicted Dunlap in 1996 and sentenced him to die for the slayings of four employees at a Chuck E. Cheese restaurant in Aurora.