Homeless advocate brings his message to the masses through social media - Los Angeles Times

Mark Horvath, a documenter of homelessness who was once homeless himself, was touring a tent city in Sacramento when he raised his cellphone to take a photo of one man's ingenious shopping-cart storage system. Suddenly, another man rushed at him, screaming, with a knife.

Horvath was terrified, he said, but not so scared that he stopped sending photos and text messages about what was happening...