A college student went on a slashing spree at his Houston campus on Tuesday, wounding at least 14 people, 2 of them critically, before he was subdued by bystanders, police said.

Identified as Lone Star College student Dylan Quick, 20, the suspect was charged with 3 counts of aggravated assault from the rampage in which witnesses say he used a weapon described by the Harris County Sheriff's Department as a "razor-type knife."

A statement issued Tuesday night according to a sheriff's departments, Quick told investigators who questioned him that he had harbored fantasies of stabbing people to death since he was in elementary school, and that he had planned the attack for some time.  Other eye witnesses told local media that the attacker used a weapon appeared to be a box-cutter or "exacto" knife.

The campus was put on a security lockdown and closed for the rest of the day.  This campus is part of the Houston-area community college network.  There are 20,000 students at the northwest Houston campus where the attack happened.

The Lone Star College System has a total of about 90,000 students with 6 colleges along with several smaller centers in the Houston area.  
In January, there was a shooting at another campus of Lone Star College in the Houston area, three people were shot.

This past year has had several instances of school violence.  The worst and most deadly of those was a shooting rampage in Newtown, Connecticut, last December.  26 people were killed, including 20 children, at Sandy Hook Elementary School.