thats even easier wtf
amateurs
it could potentially be
if it's someone whose house you commonly visit so all your hair and your fingerprints stuff is normally gonna be there, and you kill them in their sleep with something super common like a cheap bic pen or whatever
then yeah I don't guess it'd be easy to pin the murder on you
but whoever you kill you're gonna be doing it for a reason. chances are, someone else will know that reason, whether or not they know you plan to kill them for it. and when the cops talk to them, they'll find a motive. your DNA is already there. at that point it'll probably be easy to charge you