Every Tuesday evening, about a dozen teenage boys meet at a community center in South Philadelphia. >> Go ahead. Okay.Now, >> to learn the basics of carpentry. >> Ever since I joined, it's like I've been learning so much stuff >> through Unity in the Community, an anti-gun violence nonprofit. Teens like Eric Randall, who lost his cousin to gun violence in 2014, learned the power of putting down a weapon >> and picking up a power drill.the fact that we're anti-gun violence. We show all the young people that ...