Jacqueline Badger Mars, the billionaire part owner of candy company Mars Inc., is scheduled to go on trial next week on charges connected to a fatal crash that killed an 86-year-old woman in Virginia.

Mars, 74, faces a charge of reckless driving after her 2004 Porsche SUV crossed into another lane Oct. 4 and struck a minivan in Aldie, Va., the Loudon County Sheriff’s Office told Reuters. The accident killed 86-year-old Irene Ellisor, who was in the backseat of the minivan and was not wearing her seatbelt.

Mars has a net worth of $23.3 billion, making her the 27th-richest person in the world, according to Bloomberg. She owns one-third of Mars Inc., the maker of M&Ms, Snickers, Milky Way and other candy. Her trial is scheduled to start Tuesday.

“As court proceedings begin, Jackie’s thoughts and prayers remain with those who have suffered injury and loss,” her spokesperson, Kent Jarrell, told the Washington Post. “She regrets this tragic accident.”

Mars was hit with a summons on Tuesday. Her court appearance in Loudon County General District Court is for a hearing, the Post reported.

Other people in the minivan that Mars struck were seriously injured in the accident. The occupants were in Virginia for a wedding. Ellisor was a resident of Huntsville, Tex.