Did you read the article?  The perpetrators and the victim here were all from the same demographic. Do you know anything about Anchorage?  Homeless people who beg on streets here are dangerous--if to anybody at all, which they usually aren't--only to one another.  They understand that the system will instantly snap into action to protect worthy people like you, so they won't touch you.  I've talked to countless homeless people over my 35 years here, and the worst I've ever encountered is mental illness, which the great State of Alaska treats principally by putting people in jail.  Most of the homeless are grateful just for a little time and attention.  They'd rather feel you respected them than gave them money.