The woman’s son, David Gipson, was riding the mower about 6:15 p.m. when she brought him water, Kaufman said.
According to a Clark County Sheriff's Department report "...she leaned on the rear tractor tire for balance. Mr. Gibson moved the gear shifter into gear, but kept his foot on the clutch. However, the tractor lunged forward causing her to lose her balance and fall under the mower. The blades were still activated at this time and the injury was sustained."
Mary Gipson is listed in critical condition.