ISIS maniac Omar Seddique Mateen, 29, fired indiscriminately inside gay nightclub Pulse in Orlando, Florida after shooting the doorman dead early Sunday morning. Police used explosives and a BearCat armoured vehicle to smash a hole in the wall, allowing some trapped clubbers to escape. Mateen emerged from the hole shooting moments later and was shot dead by a team of "eight or nine" officers. The killer is thought to have been armed with the same gun used by the Sandy Hook school shooter. The AR-15 semi-automatic rifle has left dozens dead in multiple shootings this decade, calls for a nationwide...