Man accused of running over and killing mother after argument about borrowed car, police say

Share Add Us On Google Add as a preferred source on Google TULSA, OKLA. (Gray News) - An Oklahoma man is accused of running over and killing his mother after an argument about a borrowed car, according to authorities. John Tiffin, 31, was arrested on charges of second-degree murder, assault and battery with a dangerous weapon, reckless driving and obstructing an officer, a press release said. Tiffin allegedly borrowed his mother’s silver car on Oct. 7 to run errands but never returned it. His mother was identified as 69-year-old Karen Curthoys. Police said Curthoys wanted her car back and contacted her other son, Timothy Curthoys, who agreed to help her recover the vehicle. Tulsa police said Curthoys and her son tracked down the car. According to court documents, they found the car in a driveway. An argument followed as Timothy attempted to recover it. Tiffin allegedly put the car in reverse and hit his mother, who was standing outside between two vehicles. Timothy was in the front passenger seat. Karen Curthoys was taken to a hospital, where she died from her injuries on Oct. 12. Copyright 2026 Gray Local Media, Inc. All rights reserved.