The defense asked Warren to review the work of Melissa Oberg. She is the former Indiana State Police crime lab technician who examined the unspent round found at the murder scene and compared it to Allen's gun. Oberg's analysis found the crime scene round had been cycled through Allen's gun.

The fourth week in the double-murder trial of Richard Allen began Monday with a testimony from a neuropsychologist, who told jurors that the Delphi man was genuinely suffering from severe mental illness when he confessed to killing Abigail "Abby" Williams and Liberty "Libby" German.

It’s been more than seven years since Abby Williams and Libby German disappeared after a walk along the Monon High Bridge outside of Delphi on a day off from school. Their bodies were found the next day along the north bank of Deer Creek,