Alexander Castro is charged with the manslaughter of 24-year-old Alexandra Shaye West Seybert. Investigators said Castro's Chevy Silverado truck was traveling at 91 mph in a 45 mph construction zone on U.S. Highway 281 near TPC Parkway on July 22, 2022 when, without braking, it rear-ended a vehicle stopped in standstill traffic. Traffic along that stretch of highway had been stopped because of a wrong-way crash north of this crash scene that had blocked both northbound lanes. SAPD investigators found that Castro had been drinking alcohol at a driving range and had purchased alcohol at several North Side bars before the fatal wreck. However, despite Castro showing signs of intoxication, investigators determined he was likely no longer over the legal limit to drive since the field sobriety tests occurred more than four hours after the crash.