Published: 2/15/08, 12:05 PM EDT
By CARYN ROUSSEAU and DEANNA BELLANDI
DEKALB, Ill. (AP) - The man who gunned down five people at Northern Illinois University in a suicidal rampage became erratic after halting his medication and carried a shotgun to campus inside a guitar case, police said Friday.
The man, 27-year-old former student Stephen Kazmierczak, was also wielding three handguns during Thursday's ambush inside a lecture hall.
Two of the weapons - the pump-action Remington shotgun and a Glock 9mm handgun - were purchased legally less than a week ago, on Feb. 9, authorities said. They were purchased in Champaign, where Kazmierczak was enrolled at the University of Illinois.
The other weapons were still being traced.
The gunman's father, Robert Kazmierczak, briefly came out of his house in Lakeland, Fla., to talk to reporters.
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