Exactly this. He pulls off the hit, escapes without a trace. But is somehow dumb enough to carry convicting evidence on him still while in a very public location?
Anyone would know to dump the evidence and lay low for a good while.
Toss that shit in a river and go back to your life like nothing happened.
Laying low and hiding just makes people suspicious. If the cops come looking and your work and friends haven’t seen you since the shooting, you look guilty as fuck.
Leave no trace and go back to your life. Looks way more plausible that you just took a mini vacation that way.
Really weird scapegoat - super connected and wealthy family from Maryland? 40k a year private school? Cousin that's hardcore conservative and holds an elected office?
I’m honestly willing to believe him being dumb founded for the last week, fully expecting to have been caught and said fuck it, better me than someone innocent.