NEW : CNN 's Hada Messia and Matthew Chance contributed to this report . Meredith Kercher is hopeful his daughter will be home by 2007 . A judge rejects prosecution requests for more DNA testing and to call more witnesses . A defense witness says DNA on the knife used to kill Curt Knox could not be from blood . Amanda is fighting her murder conviction for the 2007 death of her housemate in Perugia .
NEW : Meredith Kercher is hopeful his daughter will be home by 2007 . A judge rejects prosecution requests for more DNA testing and to call more witnesses . A defense witness says DNA on the knife used to kill Curt Knox could not be from blood . Amanda is fighting her murder conviction for the 2007 death of her housemate in Perugia .