Officials: Gunman had no large stockpile of bomb materials

DALLAS (AP) — The gunman who killed five Dallas police officers did not have a large stockpile of bomb-making materials at his suburban home, two officials said Friday, contradicting earlier claims that Micah Johnson possessed enough explosives to stage a larger attack.

Officers who searched Micah Johnson's home Friday found small amounts of an explosive known as Tannerite, as well as acetone, which can be used as an accelerant in explosives, according to the officials, who are familiar with the investigation.

An FBI intelligence bulletin from 2013 warns that Tannerite and other exploding targets can be used with other materials to make explosives.

A day earlier, Brown told CNN that the materials in Johnson's home were "large enough to have devastating effects throughout our city and our North Texas area."

Brown said Johnson told police he had planted bombs as part of his assault on officers to protest recent police shootings of black men.