Steven Kazmierczak Sent Baty A Good-Bye Package on Valentine's Day

"The person I knew was not the one who went into Cole Hall and did that," Baty told CNN. "He was anything but a monster. He was probably the ... nicest, (most) caring person ever."

The day of the shooting or the day after, Baty received a package from Kazmierczak containing two textbooks, a cell phone and what she characterized as a "goodbye note."

"You've done so much for me," the note said, according to Baty. "You will make an excellent psychologist and social worker someday."

Another package contained a gun holster and ammunition. She confirmed that he had stopped taking an antidepressant about three weeks ago because "it made him feel like a zombie," but she denied that his recent behavior was unusual.