HOUSTON—A man charged with murder in the ambush of a suburban Houston sheriff’s deputy had a history of mental illness and was once declared mentally incompetent, according to authorities and his former attorney.
Shannon J. Miles, 30, was being held without bond after an initial court hearing Monday. Prosecutors accuse him of opening fire from behind on Harris County Sheriff’s Deputy Darren Goforth on Friday night in what the sheriff called a “cold-blooded assassination.”
