The gunman in the Connecticut shooting rampage committed suicide as first responders closed in, the governor said Sunday, raising the specter that Adam Lanza had planned an even more gruesome massacre and was stopped short.
Lanza blasted his way into the building and used a high-power rifle to kill 20 children and 6 adults, including the principal who tried to stop him, authorities said.
As President Barack Obama prepared a visit and churches opened their doors to comfort a grieving town Sunday, federal agents fanned out to dozens of gun stores and shooting ranges across Connecticut, chasing leads they hoped would cast light on Lanza's life.
Among the questions: Why did his mother, a well-to-do suburban divorcee, keep a cache of high-power weapons in the house? What experience did Lanza have with those guns? And, above all, what set him on a path to go classroom-by-classroom, massacring 6- and 7-year-olds?