Report Shows Columbine Killers In Action

A sheriff's office report released Monday on CD-ROM gives the best pictures yet of the Columbine killers in action, including never-before-released video.

It features surveillance video from the cafeteria showing teen-age gunmen Eric Harris and Dylan Klebold calmly and methodically tossing bombs and setting fires, reports CBS News Correspondent Cynthia Bowers.

At one point two students are seen running through the cafeteria for their lives. All this just minutes after the gunmen fired the shots that killed 12 students and one teacher April 20, 1999.

A timeline says the rampage began around 11:19. The first 911 call came four minutes later. By 11:34, the last of 13 victims had been killed.

The killers were chillingly efficient -- the entire massacre took less than fifteen minutes. By noon Harris and Klebold had returned to the library, where they killed themselves. But it wasn't until three hours later that the SWAT team made their way to the scene.

The timeline appears to support the department in disputing claims by victims' families that the officers could have saved lives if they had acted more quickly.

But the report also confirms that teacher Dave Sanders, who died in a science room, and some of the 23 people wounded waited for hours until the SWAT team finished evacuating the school after the April 20, 1999, attack.

There was no evidence that there was a third shooter or that anyone had prior knowledge of the killers' plans, the report said.

The voluminous CD-ROM report, with about 700 pages of text plus photos and audio and video clips, was based on as many as 5,000 witness interviews and about 10,000 pieces of evidence.

The report said Klebold and Harris also intended to kill 488 people in the cafeteria through the use of two bombs.

It said all the explosives were brought into the school in duffel bags on the day of the attack.

A Jefferson County district judge ordered the sheriff's office to hand over the report to the families suing Sheriff John Stone and his investigators.

The families' lawsuits clam Stone's office ignored warnings that Harris and Klebold planned a terrorist act, and that SWAT teams took too long to enter the school after the attack began.

Some parents also are mounting a campaign to recall Stone, accusing him of denying them access to investigation information in order to stall their lawsuits, which had to be filed within one year of the attack.

Brian Rohrbaugh, who's son Daniel was killed, is one of the 15 families suing the sheriff's department.

"The question has always been: Why is the world didn't go in?" he says. "Obviously the blame starts with the two murderers, from that point could more have been done? Absolutely."

Because of pending lawsuits the Sheriff's Department won't discuss its findings, but the report includes pictures of the weapons and bombs left behind.

Authorities say that had the bombs had exploded as planned, as many as 600 students could have died.

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