Data stats for r/MoscowMurderMassacre

Riddle me this. How does an emphatic, zealous vegan who can't even filet a fish proficiently brutally maul and massacre four college students on two separate floors of a soon-to-be-demolished house in 6 to 8 minutes maximum and walk right past a witness with a bloody, dripping survival knife in his hand and leave her alive and unscathed to identify his bushy, bushy brown eyebrows which leads ultimately to his arrest conveniently as the one and only suspect? This is the State's absurd case.