One of the perps?
Police Meet to Tackle Violent Teen “Wildings”
Police in San Francisco's East Bay are meeting on Friday to address what they say is a phenomenon called "wildings," where packs of teens gather in public places and create mayhem in their wake.
The meeting was prompted most recently by "wildings" terrorizing San Leandro. Authorities say that over the last few months, large groups of teenagers - as many as 100 - have been attacking, scaring and robbing victims at malls and at near BART stations. On Friday, the police department put out a flyer about this"new crime trend" involving "unruly young adults." . . .
http://www.nbcbayarea.com/news/local/Police-Meet-to-Address-Violent-Teen-Wildings-262109521.html