Lexington Police say a teenager may have died overnight, if they hadn't pulled over a car in downtown Lexington. When they did, they found the teen with a severe stab wound.

Officers say they noticed the car going 100 miles per hour on South Broadway near High Street. They found a 19-year old in the car, with a stab wound to the neck.

The stabbing happened at a trailer on Imperial Avenue, off Newtown Pike.

Police arrested 19-year old Eduardo Alvarez.

Police think the stabbing stemmed from an argument over a girl.