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Connecticut School Shooting: Suspected shooter now ID'd as Adam Lanza; older brother Ryan questioned by cops

Connecticut State Police walk near the scene of an elementary school shooting on Dec. 14, 2012, in Newtown, Conn.
Douglas Healey/Getty Images
(AP) WASHINGTON - A law enforcement official says the shooter in the Newtown, Conn. school massacre is 20-year-old Adam Lanza, the son of a teacher at Sandy Hook Elementary School where the bloodbath occurred. A second law enforcement official says the boy's mother, Nancy Lanza, who was a teacher at the school, is presumed dead.

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The first official says Adam Lanza's older brother, 24-year-old Ryan Lanza,, of Hoboken, N.J., is being questioned by police. An earlier report from a law enforcement official mistakenly transposed the brothers' first names.

Both officials spoke on the condition of anonymity because they were not authorized to speak on the record about the developing criminal investigation.

The first official said shooter Adam Lanza is dead from a self-inflicted gunshot wound.

Complete coverage of the Sandy Hook Elementary School massacre