DENVER (AP/CBS4) – A man convicted of ambushing and killing four employees at a Colorado pizza restaurant in 1993 had undiagnosed bipolar disorder at the time and should not be executed, his lawyers argued Monday.

Nathan Dunlap’s attorneys made the claim in a formal request to Gov. John Hickenlooper for clemency, also saying Dunlap is remorseful and that he endured severe physical and sexual abuse as a child. Dunlap talked about his regrets on video.

Dunlap, 38, was convicted and sentenced to die in 1996 for the shooting deaths of four workers who were cleaning a Chuck E. Cheese restaurant in Aurora after business hours. Three of the victims were teenagers. Dunlap, then 19, had recently lost a job at the eatery.

Hickenlooper was given lots of information in a petition, including a DVD with interviews from Dunlap’s brother, sister, friends and even mental health experts. There is also a hand-written letter from Dunlap himself.

The letter is addressed to Hickenlooper and reads as an apology for Dunlap’s actions and the pain he caused the victims and their families. The DVD includes a series of interviews with Dunlap’s siblings talking about the abuse they endured from their parents and how Dunlap grew up in a difficult household. Dunlap himself is interviewed, talking about his battle with mental illness.

“I came to realize that, you know, that I was under the influence of bipolar when I did the things I did at Chuck E. Cheese. When I did the things I did at Chuck E. Cheese, when I did the things I did leading up to Chuck E. Cheese, just a lot of things that I was doing out there, I came to realize bipolar was playing a very big role in what I was doing,” Dunlap said in the video. “I regret what I did, what I did to the victims’ families, to Bobby Stephens.”

The U.S. Supreme Court turned down Dunlap’s last guaranteed appeal in February. This month, a judge scheduled Dunlap’s execution for the week of Aug. 18, with the day to be set by the head of the Colorado Department of Corrections.

Hickenlooper declined to say Monday whether he would grant clemency.

“It’s a hard one. It’s as hard as it gets,” he told reporters outside the Capitol.

Nathan Dunlap as seen in the DVD (credit: Gov. Hickenlooper's Office)

Nathan Dunlap as seen in the DVD (credit: Gov. Hickenlooper’s Office)

Hickenlooper met Friday and Saturday with victims’ family members, prosecutors, Dunlap’s lawyers and possibly others. He declined to list everyone he spoke with, saying some did not want to be publicly identified.

Hickenlooper appeared to be torn on the issue, said Bob Crowell, father of one of the victims, who met with the governor Friday.

“We let him know that we are certainly for the death penalty being carried out,” Crowell said Monday. His 19-year-old daughter, Sylvia, was among the four killed.

Crowell estimated that two dozen family members of victims were present, and that three-quarters of them favored execution.

The clemency petition acknowledges that Dunlap “committed his terrible crime” but says he was in the first full manic episode he experienced as a result of bipolar disorder.

The petition says three people on the jury that convicted Dunlap and sentenced him to die now say they might have voted for life in prison instead had they known he had bipolar disorder. The jurors are not identified by name.

Nathan Dunlap in court on May 1, 2013 (credit: Denver Post)

Nathan Dunlap in court on May 1, 2013 (credit: Denver Post)

Doctors from the state mental hospital judged that Dunlap was not mentally ill before his 1996 trial but did note some “psychotic sounding” behavior, the petition says. Dunlap’s trial attorneys did not investigate his mental health further, the petition says.

The state prison system began treating Dunlap for bipolar disorder in 2006, the petition says. It says Dunlap had frequent episodes of bizarre behavior and discipline problems, but those have ceased since the treatment began.

The petition includes an apology from Dunlap that reads in part, “I’m sorry for the pain and suffering I’ve caused the victims’ families and friends. … I’m sorry for the loss of life.”

Nathan Dunlap in court on May 1 (credit: Denver Post)

Nathan Dunlap in court on May 1, 2013 (credit: Denver Post)

The petition includes letters of support for clemency from 15 retired judges, eight former prosecutors, numerous clergy, civil rights and mental health advocates and Dunlap’s sister, Adinea M. Dunlap-Ashlock.

Dunlap-Ashlock’s letter says she and her brother grew up in a dysfunctional family but offers no details. The petition states that Nathan Dunlap’s mother touched him inappropriately and that his mother would experience manic episodes that terrorized her children.

– By Dan Elliott, AP Writer

CBS4 staff contributed to this report.

(TM and © Copyright 2013 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2012 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)


Leave a Reply

Please log in using one of these methods to post your comment:

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s