Two students who gunned down 12 schoolmates and a teacher at Columbine High School said they were looking for a "ground zero'' two years before the bloodbath _ and authorities knew it.
Jefferson County Sheriff Ted Mink said today that someone called he sheriff's office in 1997 to tip off authorities about a Web ite run by Eric Harris.
A deputy investigated the tip and forwarded a report and
printouts from the Web site to a sheriff's investigator in charge
of computer-related crimes.
Mink says the investigation of the Web site apparently stopped there.
A deputy looking through a training manual found the report last week stuffed in the pocket of a three-ring binder.
On the Web site, Harris and Dylan Klebold described building pipe bombs from scratch.
The report quoted the teens as saying ``Now our only problem is to find the place that will be 'ground zero.'''