DALLAS (AP) - A former Utah state trooper suspected in shootings on Dallas-area roads has struggled with an addiction to painkillers and was wanted for a North Texas crime spree.
Dallas police said 37-year-old ex-trooper Brian Smith was responsible for at least one death that resulted from the shootings.
He's in critical condition on life support this morning at a Dallas hospital from a self-inflicted gunshot wound.
The Dallas Morning News reports Utah authorities said Smith started abusing alcohol and prescription medications after an on-duty traffic accident.
A Utah Department of Public Safety investigation found that Smith drove under the influence and committed theft.
He resigned his job and moved to Keller in May.
Southlake authorities obtained a warrant for Smith's arrest in connection with a Dec. 17 robbery of a woman in a shopping center
In addition, authorities say Monday morning, a man matching Smith's description broke the window on a vehicle at a La Petite Academy in Southlake.
Witnesses said the man grabbed a purse and fled.
(Copyright 2008 by The Associated Press. All Rights Reserved.)