Authorities have identified Chad Williams, 24, as the gunman who killed two people and wounded seven others during a shooting at an In-N-Out Burger in Twin Falls, Idaho, on Saturday afternoon, as reported by The New York Post.

Twin Falls Police Chief Matthew Hicks announced the identification during a Sunday, Aug. 2, press conference. According to investigators, Williams carried out the attack with a rifle before taking his own life with a self-inflicted gunshot wound.

Police said the shooting began at about 2 p.m. Saturday at the recently opened In-N-Out Burger and quickly spread from the restaurant to the parking lot, creating what Hicks described as a "very chaotic" scene.

Investigators said Williams acted alone. Authorities also said his family has cooperated fully with the investigation.

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"Their hearts are also broken at this time," Hicks said of Williams's family.

Police credited an off-duty law enforcement officer and an armed civilian with helping limit the attack before it ended.

"We want to take a moment and commend the actions of the off-duty officer and this citizen and their heroic action to stop this incident," Hicks said.

"We believe their actions helped drive the suspect away from the scene, preventing further casualties."

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Video recorded from the scene showed an armed civilian exchanging gunfire with Williams outside the restaurant. Additional footage appeared to show the suspect walking through the parking lot before aiming a rifle toward the driver's-side window of a blue Tesla and firing two shots. The video then showed Williams lowering the rifle, moving away from the vehicle, and running across the parking lot while still carrying the firearm.

According to police, Williams fired the rifle from outside the restaurant's drive-thru area as customers and employees attempted to escape. Emergency responders arrived after workers and bystanders rushed to help those who had been injured.

One In-N-Out employee reportedly dragged a wounded co-worker across the parking lot while others provided assistance until paramedics reached the scene.

In-N-Out Burger President Lynsi Snyder confirmed that one of the company's associates was among those killed in the attack. Authorities have not yet released the identities of the two people who died.

Police provided an update Sunday on the conditions of the seven surviving victims. Two people have been treated and released from the hospital. Three others remain hospitalized in stable condition, while two victims continue to be listed in critical condition.

Among those injured was Twin Falls taxi driver Terry Dudley. According to a GoFundMe campaign created to help cover his medical expenses, Dudley was charging his Tesla when he was struck by gunfire.

The fundraiser states that Dudley, a widower and father of four, was shot twice in the back during the attack.

"There are very few people in this world like Terry. He is the kind of man who quietly puts others before himself, who works hard, loves deeply, and never hesitates to lend a helping hand," the fundraiser states.

"He is tenacious, compassionate, kind-hearted, and has a way of making those around him smile, even on their hardest days."

Investigators have not announced a motive for the shooting. Police said the investigation remains active as detectives continue collecting evidence and interviewing witnesses.

Saturday's attack is among the deadliest shootings to strike Twin Falls in recent years and drew a significant response from local law enforcement and emergency personnel. Authorities have asked anyone with additional information, photographs, or video from the scene to contact investigators as they continue working to determine what led to the violence.

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