alcohol, that they'd never do without them. Westerfield clearly had an alcohol problem.......and blackouts. Some say Dahmer never would have done what he did, if not for alcohol. IMO, whoever did this crime had a substance abuse problem.

Helgoth had hi-tec boots and a stun gun. If he's not involved, those two things might give an indication of the type of person that would have these things.

Bats and stun guns were weapons of choice in the Denver area---used by gangs and druggies.

There were a lot of affluent people living in the area, as well as street people and transients. The note lends itself to someone who (maybe) had a certain level of intelligence (although there were two misspellings, and one instance of using a instead of an).