Derek Brian Grouette sought by Calgary police in connection with fatal hit and run

Calgary police are looking to speak with a man who is believed to have information on a fatal hit and run last week involving a stolen truck that hit another vehicle head-on near the Tsuut'ina reserve.

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The driver of a stolen truck is still at large and police believeDerek Brian Grouette,33, may have information that could help the investigation.

Two people were arrested near the scene after fleeing on foot,including the underage son of a Calgary police officer and 26-year-oldJanelle Umpherville.

Umphervillewas charged with possession of stolen property, occupying a stolen motor vehicle and breaching a recognizance order.

She bookeda court date of April 18to plead guilty to her charges.

Around 6:30 a.m. Thursday, an officer withTsuut'inapolice tried to stop a suspicious pickup truck that was speeding on the nation's land west of Calgary but the truck got away.

The stolen truck and a smaller car collided head-on on 37th Streetbetween130thAvenueand146thAvenueS.W., killing52-year-oldKeithMorleywho was driving the car.

The Alberta Serious Incident Response Team (ASIRT) is also investigating the incident.