IMO.. the biggest question is why was the perp there in that area. Were they following, hanging out , or just crossing tracks to somewhere. I can see the tracks being COD, persons messing around, give Taylor a scare, she falls, hits head on tracks ,they panic hide body. But there would be evidence on the tracks, in that case the law may see an accident that was covered up. Like a hit and run. But that does not seem to be what the law thinks.
So that leaves weapons or fists. Being halloween, sabre swords, walking sticks, endless props. I really, really think the law could be asking for pics and vids of the nite, most people have pic video phones.
It is also a nite when theres going to be a higher % of drug addled or drunk peoples around.Somebody might of seen a zombie(Taylor) and just went freaky.
Or its personal.
i don't like they bought a behavior specalist in. Maybe more dogs or something else would be more usefull. BS have their place, but this was Halloween nite, so unless the perp does something else, what is their base line.
Were there rumors of Taylor having a secret admirer-stalker?