Gary Jubelin is often lauded around these parts, but it certainly sounds like he didn't follow a methodical process but rather was a bit scattergun in his approach.
The Foster family's involvement, especially if he has passed away on the property, would be absolutely dreadful for a number of reasons not least of all being what it would mean for the effectiveness of the initial police investigation. How could that have been kept from his older sister though?
this case just got curiouser and curiouser.