The Last Word with Lawrence O'Donnell 03/19/12

Trayvon Martin case sparks new debate on gun laws

Jonathan Capehart, opinion writer for The Washington Post, and Mark Thompson, host of "Make It Plain" on Sirius X-M Radio, talk to MSNBC’s Lawrence O’Donnell about the shooting and Florida’s unique law which may protect the alleged killer. ... more Duration: {{video.duration.momentjs}}