The semen on a blanket in a suitcase found in the basment is VERY significant. The family was planning a trip out of town the morning of the 26th. I don't know about you, but our family and most of my friends always get our suitcases out and pack a few things the night before an early A.M. departure. An intruder just happening to select that very suitcase out of many that you would think would be stored together in the basement? Scenario: The suitcase was one of many brought upstairs in preparation for the A.M. departure. A family member, while cleaning-up after discovering the murder put one of the incriminating pieces of evidence from the crime scene (the blanket) into one of the suitcases and brought it downstairs, perhaps planning to wash/dispose of it later. Then, a while later, after the intruder theory has been hatched, a different family member goes down into the basement and places that suitcase directly under the window to bolster an intruder theory. The significant thing to remember about that night is that most of the suitcases may (I say may) have already been brought upstairs in preparation for the trip, and that particular suitcase was the only large one down there. That may be the only mistake the conspirator and/or murderer made that night, one that points directly to the family.