What? When you commit crimes you don't do it in a clean suit with reflective face shield to avoid leaving trace evidence and hide identity, wearing a magneto helmet to keep out the mind readers?
That is why when there is a vicious blizzard with -40 no one will question anyone about wearing gear that resembles thick, heavy coats, or face shields, especially at night. Plus very few people ever venture out in the dead of night, hence even less eye witnesses. Trust me the police are given too much credit (due to fantasy shows on TV) because most of their cases are solved through witness statements and CCTV. Eliminate those obstacles (including no dna/fingerprints) and they have nothing.
All you will see from the police is a desperate plea on TV asking for anyone to dob in their relatives and/or friends for a chance of receiving a reward. That is when you know the police have absolutely nothing to go on.
You guys have it made in the US now, can you imagine what can be seriously done due to this type of amazing weather? Here in Australia it's sweltering hot and every person and his dog is out on their front porch watching everything and everyone even at night.... much too risky in a built up area, ........far better in the bush.