Who Was Adam Lanza?: A Yahoo! News/Frontline live chat

How can we understand a senseless act of violence? Frontline and the Hartford Courant looked into two questions in the aftermath of the Sandy Hook Elementary shooting: Who was Adam Lanza? And what was the nature of his relationship with his mother, Nancy Lanza?

Yahoo! News reporter Liz Goodwin will be joined by Hartford Courant reporters Alaine Griffin and Josh Kovner as well as Frontline producer Frank Koughan today at 2 p.m. ET to take your questions about the answers they uncovered.

The Frontline film is available here, and the report from the Hartford Courant is online here.

You can leave your questions in the chat window below, and please join us at 2 p.m. ET for the live discussion. We will not be able to take all questions.