Geneticists to analyze Adam Lanza’s DNA

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Geneticists have joined the investigation into the Sandy Hook Elementary School massacre.

The state medical examiner was asked to do a complete analysis of shooter Adam Lanza’s DNA, but they aren’t looking for anything specific.

Geneticists say there are genetic components to mental illness, but there are many genes involved — not just a single gene or mutation.

Lab results of Lanza’s DNA are not expected for several weeks.