Thanks for that link. Ive got to be careful about reading Daily Mail.
A crime scene investigator described swabbing Wilsons gun with a Q-tip; the subsequent D.N.A. report found Mr. Browns genetic material on Officer Wilsons Sig Sauer pistol. Similarly, D.N.A. from Mr. Brown was also found on the officers uniform pants and shirt. In his own testimony, Officer Wilson told jurors that Mr. Brown had grabbed the gun while the two scuffled at the car. -NYT Nov. 25, 2014
Also see: Michael Brown Shooting physical evidence Grand Jury saw (evidence showing that Mr. Brown was moving toward the officer)
Here is an example of evidence that supports the fact that Michael Brown was moving toward the officer:
GRAND JUROR: So as far as physical evidence, we have the blood on the ground that was about 21 or 22 feet from where Michael Brown ended up. p 4741 of grand-jury-testimony.pdf