Berryman discussed the difficulty of suicide as cause of death given the known historical details of the sustained wounds .
In 2011 , investigating the theory that Lewis was murdered , The History Channel 's Brad Meltzer interviewed Hugh Berryman as a blunt force trauma expert .
Hugh Berryman discussed the difficulty of suicide as cause of death given the known historical details of the sustained wounds .
In 2011 , investigating the theory that Lewis was murdered , The History Channel 's Brad Meltzer interviewed Hugh Berryman as a blunt force trauma expert .