On April 17th, at approximately 2:00 AM, West Precinct officers responded to a 911 call of an robbery in the parking lot of a nightclub in the 2000 Block of Westlake Avenue North.  The caller stated that he was confronted by four Hispanic men who demanded money from him.  Officers were already enroute to this location for another robbery call with the same suspects.  In that case, one of the suspects struck the victim while the other displayed a handgun.  Officers arrived and arrested two suspects, a 19 and a 20 year old.  It appears that the suspects were waiting in the parking lot of the establishment looking for people to victimize.  The two suspects were later booked into the King County Jail.