In the early morning hours of a September weekend in 2018, 28-year-old Captain Daniel Chamberlain Lehman was found dead near an intersection in downtown Colorado Springs. Stationed at Fort Carson, Lehman — a West Point graduate with a double major in nuclear physics and philosophy — was an Army intelligence officer and a veteran of the war in Afghanistan assigned to the 4th Infantry Division’s 3rd Armored Brigade Combat Team. An investigation determined he had been shot while walking home.

Authorities charged Gilberto Chavez Jr. in connection with the killing. At trial prosecutors said Chavez, while under the influence of drugs, had expressed a desire to take someone out and later tattooed an outline of a body on his back and called himself Gilly the Kid on social media. Chavez claimed self-defense, saying Lehman came at him, but a jury convicted Chavez of second-degree murder. In January 2020 a judge sentenced Chavez to 74 years and described the killing as a random act done for fun; Lehman’s mother called her son a humble genius with a promising career ahead of him.

Did anyone who knew Daniel or who was in downtown Colorado Springs that September weekend see anything that could help complete the timeline?