IAN DAVID LONG

The suspects in the shootings at a Uvalde, Texas, elementary school and a Buffalo, New York, supermarket were both just 18 when authorities say they bought the weapons used in the attacks.

The suspects in the shootings at a Uvalde, Texas, elementary school and a Buffalo, New York, supermarket were both just 18 when authorities say they bought the weapons used in the attacks.

Videos show how officers were largely in the dark about what happened after one of their own, Sgt. Ronald Helus​, went inside in search of the gunman.

Video released from body cameras captures the chaos deputies encountered when they arrived at the scene of a mass shooting outside a Southern California bar in 2018.

The report, which found both officers acted lawfully when they fired their weapons, also includes video which shows Ventura County Sheriff's Sgt. Long is seen waiting in a back office of the bar and watching on video monitors as Helus, Barrett and Espinoza arrive. The Ventura County District Attorney's Office Thursday released new video of the deadly mass shooting at the Borderline Bar & Grill in Thousand Oaks. Ventura County District Attorney's Office/YouTubeLong is also seen lighting and throwing one of several smoke grenades that he tossed into the club to obstruct what employees and patrons could see before he opened fire. According to the report, Long fired 61 rounds over about 20 minutes before killing himself.

In addition, Barrett's accidental shooting of Helus was justified and not criminal, the report found. The report includes edited video from security footage and officer vest-worn cameras. Long is seen waiting in a back office of the bar and watching on video monitors as Helus, Barrett and Espinoza arrive. According to the report, Long fired 61 rounds over about 20 minutes before killing himself. The district attorney's investigation is the first official report to be released on the shooting.