Also, the grey car(I believe is a Chevy Volt) that was seen at thebinlet was probably dumping his belongings they took, phone, wallet, papers, etc etc... it would not surprise me if his phone was smashed up and thrown into pieces with everything else. 4 years on now, it is probably buried under muck and would have to be excavated out.
Wasn’t his phone sent to FBI headquarters for analysis? I still can’t wrap my head around a prostitute committing murder and thinking “let’s lay out blueprints for the fire station, the nexus pipeline and this medina gazette mug to throw people off our trail”. It was sloppy, but if a bloody cloth and knives aren’t going to raise a red flag with law enforcement, then what will?