The sniper's fate
The salarian sniper targetting Aylena was captured by the militia around midnight. The assassin was attempting to strong-arm one of the hospital staff that had just returned from work into patching him up. The assassin died while underway to the hospital from two additional gunshot wounds sustained before capture.
The militia has notified neither Aylena nor Redrock Agency about this at any point during the next day, however. Hospital staff would notice, however, and some may put two and two together.