A CRUEL mum who left her nine-year-old son with brain damage after running him over when he refused to go to school has been jailed.
Tiffany Kosakowski, 36, sped off and lurched her car from side-to-side while her terrified son Julian clung on to the passenger door.
He grasped onto the outside door-handle for 50 yards before falling under the car.
The boy’s head and chest were crushed by the rear passenger-side wheel near his school in Belmont, Michigan.
A judge branded Kosakowski’s actions as “inexcusable” on Thursday as he jailed her for 30 days – plus five months suspended.
Single-mum Kosakowski admitted reckless driving causing serious injury over the February incident.
She told the court that she was devastated by what happened – adding that she knows she has to “live with this for the rest of my life.”
Kosakowski, a mum of twins, said: “All I care about is being there for my son as he recovers and supporting him every day as I have been doing.”
Documents filed in court after her son’s horror injury told how the mother knew her boy was standing at the passenger door.
It said she “knowingly drove the vehicle in a manner that was likely to, and did, cause serious physical injury to (the son).”
Her behaviour was said to be a moment of madness, according to friends – with one saying Kosakowski made her children “a priority above everything else.”