(AP) — The Kansas Highway Patrol says a party bus driver insists she properly latched a door from which a Kansas woman fell to her death.

Troopers found the side door wouldn’t have opened on its own with “minimal pressure” if it had been properly latched. The patrol made its 51-page investigative report into the death of 26-year-old Jamie Frecks public this week.

Frecks was attending a bachelorette party in May when she fell out the side of a wheelchair van-turned-party bus. The new mother then was struck by an undetermined number of vehicles.

The Wyandotte County prosecutor says there is insufficient evidence to pursue criminal charges. But several lawsuits have been filed against the driver and the bus company owners.