Hot! Murderer Adam Lanza

Last Updated 3:26 p.m. ET

A Connecticut recognized explained the mother in the gunman from the Connecticut massacre was shot several instances inside brain ahead of her son went along to the particular elementary college exactly where he gunned down twenty six people.

Adam Lanza then put to sleep themself with one particular topic on the travel from your 10 mm gun, as well as the topic appeared to be retrieved from a classroom wall.

Law enforcement officers in Newtown, Conn. merely possessed a single brief contact by using Lanza as you move the 20-year-old size murderer was still alive.

As CBS News' John Miller reports, officers responding to the emergency cell phone calls coming from Sandy Hook Elementary School had fleeting glimpses belonging to the black-clad gunman as he or she prowled that halls involving your school.

Here are one more events of Lanza's life, when recounted through CBS News' Miller:

"The first police about the scene was challenged by the tumbler window in which Lanza had shot his technique through to acquire recent the actual closed door. The policeman state-of-the-art in the college in addition to found the particular gunman, from a wonderful range affordable long hallway, certainly one or two regarding hundred feet. The gunman, covered most of throughout black, identified the officer along with ducked proper room off the actual hallway. As the actual officer, today registered by way of a spouse began to help hurry down your hallway toward the particular gunman these people over heard a volley with shots. When some people got there, these people observed the particular gunman, dead originating from a self-inflicted gunshot wound. Just over and above this gunman, inside a classroom, young children huddled together, in addition to their own teacher, they all result various times. Nearby, in the rest room a further group of children, huddled together, all shot various times. It shows up how the gunman enable visit a continue volley associated with pictures at his / her victims before preventing himself having a sole bullet on the head."

"In this age of located away loud, the electronic footprint . we discovered scant evidence that will he had a profile online," claimed Miller, a original helper director with the FBI. "The report is usually expanding that will they has been your younger person onto himself."

Reporting by Miller, "48 Hours" correspondent Troy Roberts, and various CBS News correspondents paints a picture of the shy, cumbersome youngster whom ended up being as well called "brilliant" as well as "a genius."

"He really has been a computer geek,'' claimed Lanza's aunt, Marsha Lanza regarding Chicago. "He was a very shiny boy."

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