[ExI] what would you do?

[John Klos]

Hi,

>  This morning I learned that a homeless guy snuck up behind a pedestrian on
>  that trail and stabbed him.  It wasn?t even a robbery, just a random attack.
>  The victim is expected to survive, but they didn?t catch the perp and have
>  no useful description of him or her.

Just curious: if there's no useful description, and if there's no apparent 
motivation for the attack, how can you know that the attacker was 
homeless? Did it not occur that homeless people are often victimized, and 
are much more often than not poorly served by the police?

John