knives

The officer wrote in the complaint that Mongols leaders maintain an “arsenal” of assault rifles, handguns, shotguns, knives and bulletproof vests in their downtown Los Angeles headquarters.

Lopez said his department training taught him that suspects with knives can pose a threat even when they are several feet away.

"He wouldn't have been able to deal drugs. He wouldn't have been able to carry knives. He'd get educated," he said.

Several purchases of knives had also been made online, and officers found knives, latex gloves and a balaclava at his home in Purley.

The criminology student at the University of Greenwich had collected knives and researched locations to carry out the killing, the court was told.