Dallas Investigators Dig for Details in Micah Johnson Probe
Dallas detectives on Saturday were still piecing together a picture of Micah Xavier Johnson and whether he acted alone in his ambush of police or had allies in preparing for the shooting that took five lives. Authorities have said they believe Johnson was the sole gunman during the Thursday Black Lives Matter protest in Dallas. What is unclear is whether the 25-year-old army veteran, whom some people described as a loner, had conspired with others or how long he had been planning an attack.