A second jury in nine months failed to agree Tuesday whether a Deer Park man’s marijuana use caused a fatal crash, highlighting the lack of accepted standards to determine when motorists should be considered too stoned to drive.

A Spokane County jury deliberated only about seven hours before announcing the impasse Tuesday in the vehicular homicide trial of Jonathon P. Bales, 22, who caused the fatal crash on July 26, 2010, that severed the leg and killed 54-year-old Rene Blaume.

Read the rest of my story here.

Past coverage:

June 6: Driving while stoned is focus of trial

Sept. 21: Jury deadlocked in fatal scooter crash