DALLAS (CBSDFW.COM) – Missing since Friday, former Dallas Cowboys running back Lincoln Coleman was found safe on Tuesday morning, according to Dallas Police. Investigators were worried about his diminished mental capacity and his need for medical help. Coleman’s agent and friend of 15 years, Christopher Randolph, said Coleman had parked his car at a church three blocks from his house. He said Coleman could not figure out where he left his car or how to get home. Randolph said on Tuesday at about 4 a.m., Coleman returned home but was confused about what happened. “We were worried about him freezing....