noticing
most crooked noses veer to the left
(prolly since most punches on the street come from right handed people)
his nose veers to the right (his left) so, being more rare, should make him at least a little easier to identify
also
it clearly looked like a "hit"
no robbery and used a suppressor
glowies, it seems, would have at least made it seem like a robbery or something if they wanted to hide their intent
not so sure about the "lone wolf" thing though
he could easily have been paid by a business interest, wife, small organization, or other interested party