Dylan Quick was a deaf student at Lone Star College near Houston. According to a student witness to yesterday’s attack, he was known for odd behavior and carrying a stuffed monkey around with him. He told police after his arrest that he had planned out his attack.

The Harris County Sheriff’s Office said in a statement that 20-year-old Dylan Quick used a razor-type knife, and that he told investigators he’d been planning the attack at the suburban Houston campus for some time.

Quick was scheduled to appear in front of a judge late Tuesday night, but is considered a mental health patient and was not immediately bought to court to hear charges against him, KTRK, an ABC affiliate reported.

He was charged with three counts of aggravated assault with a deadly weapon and held on $300,000 bail. It wasn’t immediately clear if additional charges would be filed.

The overnight judge said Quick provided a videotaped confession, admitting to the stabbings with an exacto knife “because of his fantasy to kill people,” KTRK reported.

One eyewitness told KTRK that Quick appeared happy after he was arrested, and had a “sinister look on his face, kind of a smile and a satisfaction grin.”

The story even includes the standard “He was a good, quiet neighbor who mostly kept to himself.” No word yet on whether he had ever been put on a behavior altering drug, i.e. Ritalin, Prozac, or any of the other drugs that have been connected to numerous previous mass attacks.

Two of his victims remain in critical condition with stab wounds.