James Holmes Update: Accused Colo. theater shooter's booby trap included improvise napalm, FBI says

Just after midnight on July 20, 2012, police say James Holmes, dressed in black and sporting nearly head-to-toe tactical garb, set off some sort of smoke bomb inside Theater 9 of the Century 16 movie theater in Aurora, Colo. Holmes allegedly began shooting at the audience, who was there to see a premiere of the new Batman movie, "The Dark Knight Rises." Twelve people were killed, 58 others injured. Holmes surrendered to police soon after the massacre in the parking lot behind the theater. Holmes is charged with multiple first-degree murder and attempted murder counts.
AP Photo/RJ Sangosti
James Holmes, suspect in the Auroroa, Colo., movie theater shooting, in court on July 23, 2012.
CBS News

(AP) CENTENNIAL, Colo. - An FBI bomb technician testified Tuesday that alleged Aurora, Colo., movie theater shooter James Holmes rigged an elaborate booby trap system intended to pull police away from the Colorado theater shooting, and that it included improvised napalm and thermite, which burns so hot that water can't put out the blaze.

Pictures: The Colorado massacre suspect

Garret Gumbinner described the system at a hearing in which prosecutors are laying out their case against Holmes.

He said three different ignition systems were found in Holmes' apartment. There was a thermos full of glycerin leaning over a skillet full of another chemical. Flames and sparks are created when they mix. A trip wire linked the thermos to the door.

Police say Holmes hoped a boom box on a timer would lure someone to the apartment.

So far the hearing has focused on the horror officers discovered at the theater just after midnight on July 21, 2012. The magnitude of the attack could be heard in the first 911 call to police, played Tuesday in court. It lasted 27 seconds and police say at least 30 shots could be heard.

The call came in 18 minutes into the showing of "The Dark Knight Rises."

Police also played a 911 call from a teenage cousin of 6-year-old Veronica Moser-Sullivan, the youngest person killed. A dispatcher tried to talk her through CPR but she sounded panicked and said she couldn't hear.

A bearded and disheveled Holmes stared straight ahead as the calls were played and didn't show any emotion.

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