The Federal Bureau of Investigation is asking anyone in the Tulsa area who's interacted with a man impersonating a federal agent to come forward. The FBI served a search warrant in Bixby on Oct. 16 in reference to a man allegedly impersonating a federal agent. Agents searched Michael Williams' home and found multiple firearms, ballistic armor, and law enforcement paraphernalia.They also learned his Jeep is equipped with red and blue lights and a siren. The FBI is asking anyone who could provide helpful information in this case to contact the Tulsa FBI office at 918-664-3300. You can also submit an anonymous tip at tips.fbi.gov. Stay in touch with us anytime, anywhere -- Download our free app for Apple, Android and Kindle devices. Sign up for daily newsletters emailed to you Like us on Facebook Follow us on Instagram SUBSCRIBE on YouTube