One week after Colorado's movie theater shooting, Maryland cops arrested a heavily armed man who told his employer he was a "joker" who was going to "blow everybody up."
Police said today they believe they "thwarted a massacre."
The suspect, identified as Neil Edwin Prescott in a court document obtained by ABC News, was being dismissed from his job. He made threatening statements to his supervisor at least twice on Monday, police said.
Prescott had an arsenal of about 25 firearms at his...Full Story