today kim lawton looks at the crisis and talks with one of the nation's most prominent evangelical leaders rerverend richard cizik, whose own son died of a heroin overdose last year. >> reporter: for years reverend richard cizik has been one of the most prominent evangelical voices advocating on issues from religious freedom to interfaith dialogue and climate change. now he's take up a new cause. one he never wanted. >> this has been my whole career, really, on so many public issues, but never did i imagine it would cut so close to home. or be so personal. or painful. >> reporter: on december 19, 2013, cizik's 23-year-old son richard cizik jr., richey, died of a heroin overdose. now cizik is urging the faith community and churching in particular to get more involved in fighting america's burgeoning heroin epidemic. >> the irony of it all, there is little if any community support and no one will talk about this. it makes me fearful for other families. >> reporter: richey died when he was brought up in the family's home in fredericksburg, virginia, about an hour outside of washington, d.c. >