THOUSAND OAKS (CBSLA) — Families and friends Thursday marked the anniversary of a mass shooting that left twelve people dead at a Thousand Oaks country-western bar.

Events included a private ceremony for families of those who were lost and the dedication of a memorial called The Healing Garden.

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On Nov. 7, 2018, at about 11:20 p.m., Marine Corps veteran Ian David Long opened fire on hundreds of people at the Borderline Bar, which was hosting a college country music and line dancing night. Students from Cal Lutheran University, Cal State University Channel Islands, Moorpark College and Pepperdine University in Malibu were among the more than 200 people in the bar when the gunfire began.

(credit: CBS)

Twelve people, including Ventura County sheriff’s Sgt. Ron Helus, were killed in the shooting, which also wounded one other person. Also killed in the shooting were Cody Coffman, Justin Meek, Alaina Housely, Sean Adler, Daniel Manrique, Kristina Morisette, Noel Sparks, Jake Dunham, Blake Dingman, Telemachus Orfanos and Mark Meza, Jr.

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Nearly 130 people were injured in the ensuing chaos.

Long, 28, was found dead of a self-inflicted gunshot wound. A motive for the shooting has not been determined.

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The Borderline Bar and Grill remains closed a year after the shooting. A healing garden built in tribute to the 12 victims opens to the public Thursday after two private ceremonies for the families of those killed and the survivors.