Knife found at OJ Simpson's home NOT murder weapon

Almost a month of testing has ended in Los Angeles on a knife found at OJ Simpson's former house.

Police conclude it's not the weapon that was used in 1994 to kill Simpson's ex-wife and her friend.

Although the former NFL star was acquitted of the killings, he's serving up to 33 years in a Nevada prison for robbery and kidnapping.

Simpson, who is 68, is eligible for parole next year.