Arlington Heights police responded about 12:50 a.m. Wednesday to a report of a domestic dispute involving a knife in the 2300 block of Nichols Rd. Arlington Heights police were requested by Cook County Sheriff for backup. No report of injuries.
Long Grove firefighter/paramedics also responded overnight (time not available at this time) to the intersection of Bonhill and Crystal Lane for a possible knife-related injury.
Unknown if the case were related.