DYER COUNTY, TENNESSEE — Authorities provided an update Thursday saying the person who crashed head-on into a flatbed semi-truck on Interstate 155 in an apparent suicide attempt had shot her family before the crash, leaving one family member dead and another seriously injured.

^{Photo credit: Dyer County Sheriff’s Office}

The incident happened Thursday morning in Dyer County. The Dyer County Sheriff’s Office identified the driver as Sherry Darlene Lydon, 60, and called the case “a deeply disturbing situation.”

According to investigators, Lydon fatally shot her husband, William Lydon Jr., while he slept, then shot her 24-year-old son, seriously injuring him. After the shootings, authorities said she drove away from the scene and collided head-on with a flatbed semi-truck / 18-wheeler on Interstate 155 in what the sheriff’s office described as “an apparent attempt to commit suicide.”

^{Photo credit: Dyer County Sheriff’s Office}

The sheriff’s office said Lydon suffered critical injuries and was rushed to a hospital, where she died later that evening. Authorities said her husband died from the shooting, and her son was seriously injured.

^{Photo credit: Dyer County Sheriff’s Office}

Officials also said Lydon had recently undergone surgery and was reportedly experiencing night terrors, anxiety, and sleep disturbances. “These factors are being considered as we continue to piece together the circumstances surrounding this tragic event,” the Dyer County Sheriff’s Office said.

^{Photo credit: Dyer County Sheriff’s Office}

The investigation remains ongoing.

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