Are you thinking there is additional video or was she likely intending to capture audio at that point? I can't see how she would try to video someone or something close to her.
Liberty was using SC for BG and camera for snapshot of Abby. These kids with phones use them so frequently that they perform tasks quickly with their phones and probably could do so blindfolded. LG notices BG is rapidly coming while walking on the side of the trestle and not in the middle. LG was distancing herself and perhaps walking away, due to the positioning of BGs image. She miraculously managed to capture BG as she and Abby were being sent "Down the Hill" by another, who may have been a part of the witnesses; thereby, explaining a possible female's presence or, in the least, another guy ambushing the two girls.
BG has not yet made it to the SE end when the words are spoken, DTH or GDown the Hill if that is what you hear.
It is my best guess that a confrontation to the side of the girls or behind them at the SE end of Monon High Bridge was beginning as LG used the SC app. This action took place at 2:30. That is the last known time of BGs location. It is on the billboards, if any are still out there.
However, we simply cannot ignore the fact of Liberty's phone pinging around town until it stopped. This supports a 2nd CS. Kidnaping at the bridge. Murders elsewhere YTBD. Placed on RLs property. RL goes away to die in handcuffs.
When speaking of allocating funds for FBI billboards, they typically are rented, or donated, for a set time period. Perhaps they decided not to renew. For Jessica Chambers' murder, the FBI offered a substantial reward and placed numerous billboards in six states surrounding the crime. Killer was local. They were removed a long time before the killer was arrested. He killed again in Louisiana within a year.
And please do not come at me about the leniency in the law regarding RLs record. A quick glance of outstanding warrants and charges filed without arrests being made fill this immediate area. LE has served 70+ search for probable cause warrants. That is a lot of folks in the low populated area to be arrested after February 13 on outstanding warrants or PCW.
As a resident, I might wonder why so many living near my home had unresolved legal matter pending with the courts.
With a backdrop from the beautiful Heartland Highway, two young girls were targeted, politely possibly at first, then the true purpose revealed itself. It's likely Liberty taped to SC until the ph ran out of power.