Prosecution, defense to make final plea to jurors in capital murder trial of Arizona convict

Attorneys on Tuesday are expected to deliver closing arguments in the capital murder trial of an Arizona inmate accused of killing an Oklahoma couple while on the run in New Mexico.

John McCluskey is facing federal carjacking, murder and other charges in the August 2010 deaths of Gary and Linda Haas of Tecumseh. The couple's charred remains were found in their burned-out travel trailer on a remote ranch in eastern New Mexico.

Prosecutors have called dozens of witnesses over four weeks, including McCluskey's cousin and girlfriend, Casslyn Welch, and his former prison bunkmate, Tracy Province. Both testified that McCluskey was the triggerman.

McCluskey's attorneys have tried to discredit their testimony, saying they cooperated with prosecutors in exchange for leniency. Welch and Province pleaded guilty last year and face life sentences.