Retired Sgt. Derek Pacifico trains screenwriters and novelists to bring more realism into their police procedurals. Vince Stewart hide caption

Longtime late night producer Peter Lassally tells Scott Simon that being interviewed for NPR is a "big, frightening experience." "I'm not a performer," he says. "I'm a quiet person who doesn't like to blow his own horn." Mark Mainz/Getty Images for AFI hide caption

Sean Rowe's new album is The Salesman and the Shark. Marius Bugge hide caption

Getnet Marsha, a shoeshiner in Charlotte, N.C., fled Ethiopia on foot when he was 14. He began shining shoes after coming to the U.S. as a political refugee in 1992. Tanner Latham for NPR hide caption

Selah Sue performs at NPR headquarters in Washington, D.C. Coburn Dukehart/NPR hide caption