stolen 2005 K2 Mach 2.0

Silver K2 Mach 2.0 (21 speed) road bike with black bag attached under seat, and vertical axis mounted light on handle bars, horizontal axis red light on seat pole. Stolen between 7:05pm-9:15pm from the bike lock-up closest to the corner of 17th and Glisan. Bike lock was cut and thrown under parked car next to corner. This happened while an event was taking place in the Mission Theater (which is where I was) - many other bikes were locked up in the area around 7pm.