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.

The state filed a motion trying to prevent the defense from calling the psychiatrist to the stand, but the judge allowed it.

Family members of Richard Allen, the Delphi double murder suspect, testified in his trial Monday, claiming that he never sexually abused them. FOX 59 reports that Allen’s daughter, Brittney Zapanta, and half-sister,