That evidence matches with Wilson’s story that Brown reached inside the car and attacked him.
Many DNA samples were taken from the scene where Wilson shot and killed Brown, including from the exterior and interior of Wilson’s police vehicle.
A sample labeled “Q18” was taken from the “interior left front door handle” of Wilson’s Tahoe and was “consistent with being a mixture of two or more individuals,” said page three of the DNA Analysis Report.
“This profile can be separated into a major male contributor profile and one or more minor contributors,” said the analysis. “Michael Brown is the source of the major male contributor profile. Due to the limited genetic information available from the minor component the presence or absence of P.O. Wilson cannot be determined.”
The evidence appears to support Wilson’s claim that Brown reached through his window and came at least partially into the vehicle early in the altercation.
In a statement given to Ferguson detectives the day after Brown’s death, Wilson said: “When he shut the door the second time he put his hands on the windowsill and shut the door and then approached the door with his body against it and he was a heavier set taller subject enough to where he had to duck his head to come into my vehicle and he entered my vehicle with his hands, arms, and his head, assaulting me.”
Wilson says Brown swung at him repeatedly while reaching into the vehicle, hitting him in the face at least once. According to Wilson, Brown also wrestled with him over his gun, at one point attempting to twist it and point it at Wilson.
Before releasing the grand jury's decision not to indict Wilson, St. Louis County Prosecutor Bob McCullough said several witnesses had reported seeing a "tussle" inside Wilson's vehicle before Brown was shot.
Physical evidence recovered at the scene proved the gun had been fired into the door of the vehicle. Autopsy results showed Brown suffered a bullet graze to his right hand from close range, and his blood was located inside Wilson’s car.
Another DNA sample labeled Q15 was taken from the “upper left thigh of P.O. Wilson’s uniform pants.”
The analysis stated that “Michael Brown is the source of the major male component profile” detected in the sample.