A judge will hear testimony that could lead to a new trial for a Detroit-area man convicted of killing his wife by dragging her into a lake in northwestern Michigan.
--Florence Unger died in 2003
The legal challenge
Mark Unger has new experts to challenge the prosecution's theory of the death of Florence Unger in 2003. Authorities said the Huntington Woods woman was pushed off the roof of a boathouse and dragged into Lower Herring Lake, where she drowned.
--MarkUnger speaks during his 2006 sentencing
History of the case
Mark Unger was convicted in Benzie County and is serving a life sentence, but he insists the fall was accidental. Starting Wednesday in Manistee, a judge will hear from two doctors who didn't testify at the 2006 trial. Attorney F. Martin Tieber says they'll challenge testimony that Florence Unger was alive for 90 minutes after hitting her head.