A bombshell new report reveals that prosecutors missed a key piece of evidence that could have resulted in the conviction of Casey Anthony in the murder of her two-year-old daughter. 

The last day Caylee Anthony was seen alive, someone searched 'foolproof suffocation' on the Anthonys' home computer, according to reports. 

Somehow, prosecutors never discovered this before the month-and-a-half-long trial last year. Casey Anthony was acquitted of murder charges and is currently a free woman. 

WKMG-TV claims the revelation is a new development that 'points right to Casey' and 'could have changed the jury's mind.'

Prosecutors argued that Anthony suffocated Caylee with chloroform, then taped her mouth shut.