A medical examiner will perform toxicology and other tests to determine what killed the person believed to be NFL quarterback Jay Cutler's brother-in-law, who was found dead in a steep and rocky area in an isolated part of southern Utah. Authorities discovered the body Thursday, nearly two weeks after a rancher found Michael Cavallari's car abandoned near the area. Cavallari, 30, is reality TV personality Kristin Cavallari's brother. More...