Arrest Made in Shooting Near Walter Reed June 20, 2007 - 2:11pm By Neal Augenstein, WTOP Radio WASHINGTON - An arrest has been made after bullets sprayed the grounds of Walter Reed Army Medical Center Wednesday in Northwest. D.C. Police say two contract security guards at Walter Reed got into an argument around 8:30 a.m. "One of the security guards tried to walk away, the other security person basically pulled his weapon and fired approximately 10 rounds at his co-worker," says D.C. Police Lieutenant Jimmy Reilly. Nobody was hit or hurt, and an arrest has been made. Police did recover bullets from cars parked nearby. Sources say police do have security video of the shooting.