Read more: After Mandeville officer killing, investigators work into night piecing together tragic scene

Mandeville Police Department Honor Guard Chris Pittman holds onto an American flag as he and other members of the honorary guard raise it at the new roadside memorial honoring Capt. Vincent "Vinny" Liberto who was killed while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

The children and grandchildren of Mandeville Police Capt. Vincent "Vinny" Liberto reach up to touch his new roadside marker at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022. Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Mandeville Mayor Clay Madden, top left, stands on a highway guardrail as he talks about Mandeville Police Capt. Vincent "Vinny" Liberto at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022. Officer Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Traffic was briefly diverted for about 30 minutes at US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022 so that a roadside marker honoring Mandeville Police Capt. Vincent "Vinny" Liberto could be unveiled to the two busloads of friends, family, and distinguished guests gathered on the overpass. Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Tracey Liberto, right, the wife of Mandeville Police Capt. Vincent "Vinny" Liberto, is joined by family and friends at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022 for the dedication of a roadside memorial honoring her deceased husband. Officer Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Mandeville Police Department Honor Guard Chris Pittman, top right, holds onto the American flag as he and other members of the honorary guard raise the flag at the new roadside memorial honoring Capt. Vincent "Vinny" Liberto who was killed while in the line of duty in 2019. Friends and public officials surround the Liberto family, top left, as they dedicate the new memorial along US 190 and LA 22 in Mandeville, the site where he was shot, on Wednesday, September 14, 2022. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Tracey Liberto, in yellow, the wife of Mandeville Police Capt. Vincent "Vinny" Liberto, is surrounded by family and friends as they watch the American flag being raised at the new roadside marker at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022. Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

The family of Mandeville Police Capt. Vincent "Vinny" Liberto gather on the overpass at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022. A new sign was unveiled honoring Officer Liberto who was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

Tracey Liberto, right, the wife of Mandeville Police Capt. Vincent "Vinny" Liberto, walks back onto the bus that brought her and dozens of others to the new roadside marker at the intersection of US 190 and LA 22 in Mandeville on Wednesday, September 14, 2022. Officer Liberto was killed near this crossroad while in the line of duty in 2019. (Photo by Chris Granger | The Times-Picayune | The New Orleans Advocate)

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