Mr.Marino said it was clear that a key prosecution theory -- that the trail of blood through the house came from a knife used by Dr.Sheppard -- was wrong,because a knife could not drop blood for such a distance.

• 马里诺先生说，显然，遍及房子的血迹来自大夫用来杀死他的妻子的刀这个重要的起诉论点是错误的，因为一把刀上的血不可能滴到那么远。