Casimir Snyder David Gist counsels troubled teens, trying to persuade them to make good choices and that violence is not the answer. On Monday, his own 16-year-old nephew was charged with murder. Gist, who lost his younger brother, Kain Gist, to an unsolved homicide in 2005, knows only too well the pain it causes the family, he said. And right now, his heart goes out to the family of Casimir Snyder,...