Hood, who had deployed to Iraq and Afghanistan five times, had been a member of the Army's elite Golden Knights parachute team for about a year.
The Chicago show was the first time he'd be jumping with members of the Navy's Parachute Team, the Leap Frogs.
About 10 minutes before the demonstration jump, a Navy parachutist chatting with Hood said he was "excited for the jump and he was very alert."
But a series of air miscalculations and several near-misses and a high-speed, mid-air collision caused the 32-year-old parachutist to clip a building in the city and tumble 22 stories to his death.
Although the teams have been jumping together at the Chicago Air and Water Show for 10 years, neither team participating in the Aug. 15, 2015, show had previously worked with the other.
Army investigators said failure by both teams to assess specific risks for working together was among factors contributing to Hood's death.
Investigators reviewed video footage, witness statements and information from unit leadership to compile their report, which was obtained by The Fayetteville Observer through the federal Freedom of Information Act.
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