It was not heresay alone.The testimony from Harry Smith the atty. is not heresay concerning Stacey contacting him for divorce. They have letters from Savio herself saying Drew was trying to kill her--written testimony to the State Attys. office.
I agree that it was not hearsay alone, but an appeals court is going to have to figure this mess out. First, I am not trying to start a fight with you, but you need to understand what hearsay is......your statement that the letters are written testimony is almost always hearsay, unless you can get the person who wrote the letter to testify, or cross examine. As a general rule an out of court statement to prove something is not allowed with well defined exceptions. The letter you reference is generally hearsay and is not admissible.
Now if Drew Peterson wrote a letter and in the letter made an admission against his interest, it might meet an exception to hearsay, but how can you have justice if a bitter wife who hates him begins writing letters saying her ex husband had told her he was going to drown her......and after 20 letters she takes some pills in a full bathtub with a leaky drain and drowns. How can justice be accomplished if the defendant cannot cross examine the person as to the truth of the statements. Just because it is written down does not necessarily make it admissible in a court of law.
Here is a good example of some of the statements which will be considered by the Appeals courts.
http://www.google.com/hostednews/ap/article/ALeqM5hIJrz_UbvqiQt_sg6DV0gkKMdJdw?docId=32ad082fe62f4b55b665a7eb7cdede52