An FBI evidence response team works the crime scene, Sunday, July 10, 2016, where five Dallas police officers were killed Thursday, in Dallas. A peaceful protest over the recent videotaped shootings of black men by police turned violent Thursday night as gunman Micah Johnson shot at officers, killing five and injuring seven, as well as two civilians. (AP Photo/Gerald Herbert)

Officials: Dallas suspect had plans for larger attack

The gunman in the deadly attack on Dallas police had plans for a larger assault and possessed enough explosive material to inflict far great…