Nah, it would be easy as hell.Bruh 60 million people play fantasy football.
The solve rate is low on regular neighborhood street crimes aint no way in hell they'd catch someone doing this
Everyone he played against would notice it IMMEDIATELY. They'd be like, "You were playing the guy who had Dak die on him last week, and then you were playing the guy that had McCoy die this week!"
Seriously, after the 2nd week everyone in his league would already be noticing and saying how lucky he is. Third week it would seem freaky. After that he'd be reported immediately.
Not to mention that targeted murder is really, really hard. Most serial killers kill random people. Killing actual targeted strangers you don't know? Who are famous and have security systems and entourages? Not happening. You might get away with it once, not twice.