Will You Watch 'Raising Adam Lanza' on 'Frontline'? On Tuesday at 10 p.m. Eastern time, PBS's "Frontline" will air its episode "Raising Adam Lanza," which follows two Hartford Courant reporters as they interview people close to the Lanza family and attempt to uncover something about the gunman who fatally shot 26 people, including 20 children, at Sandy Hook Elementary School in Newtown, Conn., last December. Check PBS's local schedule for times. What they're looking for, and what any viewer of the episode is looking for, is both complex and simple, or possibly simplistic - and I don't mean that as a criticism of the work. Both filmmakers and journalists hope to find an explanation for something that may never be explained: Why did Adam Lanza do what he did? And they're looking for some form of reassurance for us all, that we're not raising another Adam Lanza, and that somehow, next time, we might be able to spot the warning signs before it's too late. Those are explanations and reassurances we need. It's just not clear whether they're something anyone will ever be able to find. I won't watch "Raising Adam Lanza" from a journalist's perspective. I'll watch it through a parent's eyes. I'll look at the footage of 4-year-old Adam at a Cub Scout outing and the image of the big-eyed child in a Halloween costume and wonder how the intervening years turned that child into what he became as an adult. And I'll watch it, too, remembering Jennifer Kahn's "Can You Call a 9-Year-Old a Psychopath?" from The New York Times Magazine, in which she followed the family of a child who had received what she called a "possible diagnosis" as a psychopath, at a summer camp of last resort. I'll watch "Raising Adam Lanza" with more despair than hope, and with some reluctance. I'm not certain if it's possible to learn anything helpful from re-examining the life of Mr. Lanza (done here with minimum sensationalism), and in some ways, that's the most discouraging conclusion of all. There's a high emotional cost to this sort of viewing that's difficult to weigh. Will you watch, or did you watch, and what can we gain from it?