BBM
So LE has received more than 42000 tips since the muders, but are still asking for that "one tip" that will lead to an arrest.
-They may have some DNA from the bodies or crime scene (but obviously no match in CODIS).
-They removed things (such as leaves) from the crime scene which may be evidence.
-They may have footprints leading to/from the bodies.
-They have a video recording of BG walking on the bridge.
-They have an audio recording of BG's voice.
-They may have the entire crime recorded on Libby's phone (in audio or video or both), or at least enough of it to get a sense of the flow of the crime.
-They know COD based on the autopsy and CSI.
-They know if one or both of the girls were SA based on autopsy/CSI.
-They know TOD based on the autopsy/CSI.
-They should know what type, if any, weapon was used in the attack based on the audio/video as well as autopsy and CSI.
-LE know the timeline of the crime based on KG's report of when/where she dropped the girls off, the 2:07pm SnapChat photo of Libby on the bridge, and the girls failure to respond to DG's messages starting at 3:11pm.
-LE have a witness that 'reported something that needed to be reported'.
-LE made a sketch of BG within 3 days of the murders that is now giving a more accurate face to this crime.
-LE have awareness of a vehicle parked at the CPS building that may be linked to BG, and may even know the make, model, colour and registered owner(s) of said vehicle.
-LE have established (through profiling and/or investigation) that BG is local/has ties to Delphi.
-LE have investigated the girls social media accounts.
-LE have investigated and ruled out local RSOs and other POIs such as DN.
It seems like they have so much, yet so little all at the same time. Short of a confession or someone calling in to report that they lied about an alibi, what could the "one tip" be that they are looking for?