Good summary.
Qwenton Freeman witnessed it also, and refused to cooperate. He was Wilson's buddy, and with a long rap sheet including home invasion. The two of them not only fled the scene, they fled the state and Wilson didn't turn himself in for a week.
I don't believe the basics of Wilson's story. His aunt conveniently changed her version. Initial reports indicated Wilson went there with a gun. Then that changed. An expert said the shot was fired from a range of several feet, which aligns with murder more than an accidental discharge during a struggle.
Keep in mind the gun was never found. Wilson wants us to believe the victim was hiding the shotgun behind his back, they fought for it, and the gun went off, but Smoot had the incredible bad fortune of being in the path of the accidental blast. Then Wilson flees the scene with Freeman and the gun has the good fortune to disappear. It magically leaves the driveway, or the car, never to be seen again.
Over the balance of his life, Smoot was more despicable than Wilson. That swayed the jury, from everything I gathered while following the case in real time. Whether Wilson's version made any sense or not, it was easy to believe anything negative toward Kevin Smoot, who was unavailable for comment.