Tsarnaev wrote about Boston killings while hidden in boat

In the second week of the Boston Marathon bombing trial, jurors heard emotional testimony from a victim who lost both legs and the FBI presented stitched-together surveillance video tracing the suspect’s path to and from the bombing. Hari Sreenivasan talks to Emily Rooney of WGBH about a note scrawled by Dzhokhar Tsarnaev while he was hiding from authorities in a boat.