Father Greg Boyle, executive director of Homeboy Industries preaches Sunday at St. Mark's Episcopal Church in Altadena. Homeboy Industries helps gang-involved and at-risk youth through education, training, and job training. Homeboy also runs a variety of businesses, from printing plants through catering to teach job skills to gang-involved youth. Boyle talked about his experiences serving in hard-core gang areas, and the triumphs and tragedies of his work.