BEND, OR -- The Deschutes County District Attorney has determined a sudden and catastrophic medical emergency caused the April crash on the Bend Parkway that seriously injured a 10-year-old passenger.

Hummel says the driver of a northbound truck suffered a seizure, causing him to cross the median near the Colorado off-ramp. He struck a southbound car driven by a man taking his son to school. The boy was flown to a Portland trauma center, but is now back home in Bend and recovering.