No. Sam has the most compelling story while being covert and under the radar.
The way writing works, which is why Ryan Coogler is a jack, is you give away clues that are important without flat out saying it.
Sam was talking about the guy and his collegiate studies and him being poor means someone is lining his pockets. Prater continues doing that calling victims shyt as his own way of therapy. He was born in blood by both his folks killed by a serial killer, but instead of killing he shares his time hanging with serial killers. That's the end all and be all of Prater. He gives but the man only gives to those in dire needs so he can manipulate them as he sees fit.