Yeah?
How many of the shooters are female? None or damn few. Reduces profiling to those with XY chromosomes.
How many of the shooters are black? Only one or two. Reduces pool of shooters in the US by another 15%.
How many of the shooters are immigrants? About half. Hmmmm.
How many of the shooters are on psychiatric drugs...or, rather, prescribed them? Many.
How many of the shooters are politically conservative? None. Hmmm......HMMMMMM.....
Yeah, there's LOTS of room for profiling these $#@!s.