WICHITA, Kan. (KAKE) - A man is suing a over a crash in Sedgwick County last month that killed his wife, three of his children and his stepdaughter.

The Sedgwick County Sheriff's Office said the driver of a tractor-trailer loaded with grain ran a stop sign at 71st and 263rd streets near Viola on September 25. The family's Ford Expedition struck the trailer, causing it to split in two.

Those who died in the crash were Jeffrey Williams' wife, 32-year-old Jessica Noel, along with 4-year-old Jeffrey Thompson III, 4-month-old Hank Thompson, 1-year-old Mack Thompson 10-year-old Anaiah Brady.

All but Mack Thompson died at the scene. He succumbed to his injuries at the hospital.

According to a lawsuit filed against the truck driver and L.B White Trucking in Wellington, Williams seeking damages in excess of $75,000. It alleges that the truck driver was traveling at a “reckless speed” when he ran the stop sign and crashed into the SUV.

Sedgwick County has since installed rumble strips and flashing lights to stop signs at the intersection.

"it's a wide open intersection. People have to drive in accordance with the law, and in this case people disregarded the law and it cost five people their lives," said Sedgwick County Commissioner David Dennis. 

The paternal grandparents of Williams' stepdaughter, Anaiah Brady, filed a wrongful death lawsuit last month. No criminal charges have been announced in the case.

A GoFundMe for medical costs and funeral expenses has raised nearly $98,000 as of Wednesday morning.