Arlington Heights police are searching for a man who threatened another man with a knife Tuesday night when he went to the aid of his girlfriend.
The 20-year-old woman was sitting inside a vehicle outside a convenience store at 1786 W. Algonquin Road about 10 p.m. when she was threatened by the offender, police said. She went inside and told her boyfriend what had happened. He went outside and confronted the offender who then pulled out a knife, according to police reports. The boyfriend returned to the store and called 911 while the offender ran west.
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The offender was described as Hispanic, 5-foot-7, 120 to 170 pounds, wearing all black clothes, a black baseball cap and with spiky black hair.
Anyone having information is asked to submit an anonymous text with the keyword 847AHPD and the message to 847411 (tip411) or call Arlington Heights Crime Stoppers at (847) 590-STOP. Callers are guaranteed anonymity and may qualify for a cash reward of up to $1,000.