I just googled this shit and it’s true.
“Walton had previously been convicted in 1998 of drunken driving in Springdale, Ark., following a single-vehicle accident.
In 1989, her vehicle struck and killed a woman who was walking in traffic on Arkansas 265 in the state’s northwest. Walton was not cited and police said she wasn’t at fault in the accident.”
She was stopped in 2011 for drunk driving again but prosecutors never filed charges.
Source: http://www.businessinsider.com/wal-mart-billionaire-alice-walton-gets-dwi-arrest-expunged-2013-12