adam lanzaIt's been almost a week since the Sandy Hook Elementary School shooting shook this country to the core. We're all experiencing a whole mess of emotions -- from straight sadness to blazing anger. But no matter what we're feeling right now, we're all asking the same question: "Why?" Authorities are hoping that the answer lies within the intensive investigation of Adam Lanza, the reclusive 20-year-old gunman.

Unfortunately, sparse details seem to be limiting leads on a concrete motive. According to the Hartford Courant, Lanza had no job, no friends, made no texts or calls, didn't talk to anyone except his mother -- EVER, and didn't try to buy a firearm days before the shooting ... because, as we know, Nancy Lanza had quite her own gun collection, three of which he used on Friday.

Still, there may be bits and pieces of Adam Lanza's life that will ultimately help authorities string together a motive ...

For instance, he did seem to spend much of his time during the weeks before the shooting in the basement of the home he and Nancy shared, playing violent, war-themed video games on his computers, investigators say they've learned from interviews. And he walked into the elementary school outfitted like a soldier. Both points that tie into news that Adam Lanza decided at age 17 that he wanted to join the Marines. But Nancy Lanza's friends say she prevented him from going for it. It's possible that there was a lot of resentment from Adam on this point.

More from The Stir: Adam Lanza's Mother Nancy Was Every Bit the Victim in Newtown Tragedy

Similarly, there's talk that Nancy was planning on having him committed. Joshua Flashman, the son of a Newtown pastor, says he has been told that Nancy Lanza was petitioning the court to get conservatorship over her son so she could then send him to a mental institution, and Adam was "really, really angry" about it. He told Fox News: "I think this could have been it, what set him off.” Ugh.

That said, it's not as if police have absolutely nothing to latch onto right now. But the one person who would have had the most insight into Adam's motive was Nancy. And he made sure she wouldn't live to tell either of their tales ...

It's chilling just how calculated the shooting really may have been. And how little we really know about what went on in the Lanza household that led to this devastating tragedy. But I have faith the authorities will continue to dig and push and pry until they know more. Because, at the very least, everyone affected deserves real answers.

What do you make of the possible leads on a motive?


Image via ABC