Corrected entry: Upon learning from one of Edward Linney's fellow classmates that he is staying at Parklane hospital, Gray and Darby head right over to see if he can identify "Garcia" from the photo. At the hospital, Gray distracts the receptionist while Darby sneaks in. She runs upstairs and goes straight to Edward's room. How did she know which room Edward was in? The friend never tells Gray, Edward's home phone was disconnected, and at the hospital, Darby doesn't speak with Gray, he just waves her in.
Corrected entry: Darby tells a man (whom she's never met before) to wear a red ball cap when she is to meet him the next day. No one, including the hitman who recorded the call, knew she was going to request the red cap, but it just so happens that there's a bright red ball cap there in the room.