"lying in blood in the house" I assume that is fresh blood or they would have said dried blood.
How did they find her home? I would think that with the threats made against her, she had U.S. Marshals Service protection. From U.S. Marshals Service website:
Protection of federal judicial officials, which includes judges, attorneys and jurors, holds a high priority with the Marshals Service.
http://www.usmarshals.gov/duties/index.html
Police sources were cautious about describing the deaths Monday night, and said it was too early to say how the victims were killed.
"lying in blood in the house"
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Call me Sherlock but I'll throw caution to the wind and say they "weren't poisoned"