Mequon police investigation, Saukville driver dead after traffic stop

MEQUON, Wis. - Mequon police are investigating a death that followed a Friday night, March 10 traffic stop.

FOX6 News was at the scene near Highland and Fieldwood.

The Wisconsin State Patrol said a trooper stopped a vehicle in Mequon seen driving behind a closed medical clinic. The trooper then saw that the driver and passenger were not wearing seat belts, according to Mequon police.

After the stop, authorities said the driver died of a self-inflicted gunshot wound. Mequon police identified him as Mason Tomkiewicz of Saukville.

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The State Patrol said no one else was hurt, and no law enforcement officers discharged their weapons.