Ahmad Alissa researched bomb-making materials, guns, previous mass shootings and how to clear a hallway two months before he allegedly killed 10 people in a Boulder King Soopers.
That’s according to Boulder District Attorney Michael Dougherty, who revealed for the first time the extent of Alissa’s planning and preparation during opening statements of the murder trial Thursday in Boulder County.
“He lives and works in Arvada and ‘Boulder’ shows up on his phone more and more and more. He pulled into the first big place that he comes across on March 22,” Dougherty said.
Alissa drove from his home in Arvada, which was captured on a neighbor’s doorbell camera, turned on to Highway 93 and then took a left at the Table Mesa Shopping Center. He first drove by the Chase Bank and King Soopers grocery store to the nearby neighborhood and then turned his black Mercedes around, according to …