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A friend of Rosen expressed deep concern for her schoolmate. Amelia Noor, a sophomore at /*UCLA*/, has known Rosen for a few years.
"I just hope that she's not scared to, like, venture out on campus because just the fact that I know her I feel kind of scared," said Noor. "You know, if it could happen to her it could happen to anyone."
Damon Thompson, 20, pleaded not guilty on Tuesday to a charge of attempted premeditated murder in connection with the slashing of his classmate. He's accused of bringing a six-inch kitchen knife into the lab and stabbing Rosen three times in an arm and hand and once each in the back and neck.
The judge Tuesday increased Thompson's bail from $1 million to $3 million after prosecutors argued Thompson might flee to his native Belize.
Thompson said very little during his arraignment. He is due back in court Oct. 27.
There have been reports there may have been a verbal confrontation before the attack, but police say the motive is unclear.
Meanwhile, Rosen's friends continue to wish for her full recovery and return to college. They say the UCLA senior is a very nice person and a serious student.
"She had a bunch of chem classes and bio classes, and I would always see her studying with all her friends on the floor and stuff," said Noor. "The last time I saw her she was in a hurry to get to class and I was like 'Oh, she's probably going to chem.'"
Rosen's family told Eyewitness News that she is doing well.