O.J. Simpson has been arrested and will face charges related to an armed robbery that took place this past Thursday in Las Vegas.

Lead investigator Lt. Clint Nichols said Sunday that Simpson, 60, had played a “substantial role” in the incident and that in earlier interviews with the police, Simpson had provided information that “changed the course of the investigation.”

Nichols said Simpson was taken into custody at the Palms Hotel in Las Vegas hotel where he was staying without incident. Several police officers were seen entering the hotel; a security guard said police took Simpson out a side door shortly after.

The memorabilia dealer who reported being held up, at gun-point, by Simpson says he doesn’t want any charges to be filed.

UPDATE: View O.J. Simpson’s LVPD Mug Shot