New evidence found in Casey Anthony case

ORLANDO, Fla. (WSVN) -- A crucial piece of evidence was left out in the Casey Anthony case.

Investigators confirmed that they overlooked a computer search for fool-proof suffocation methods.

The search was made in a browser at the family home the day 2-year-old Caylee was last seen alive.

Casey Anthony was acquitted of her daughter's murder last year.

Her cause of death is officially listed as undetermined.

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