Here's 9 reasons why people think they are guilty. They are in no particular order, and there are many other reasons as well. I've left out all of the witnesses and most of the forensics. Yes, many of these are circumstantial, but would who thinks Scott Peterson is innocent? After all, almost all the evidence against him is circumstantial and he has a motive.
1. Amanda’s lamp being found in Meredith’s room.
2. Raffaele’s changing alibi:
a) Amanda and I went to a friend’s party.
b) Amanda was with me in my apartment but went out for awhile.
c) We were together the entire night, made dinner, had sex, watched a movie, went to sleep.
d) I was awake and on my computer the entire night.
3. Amanda’s phone calls on November 2:
a) In the 48 minutes between 12:07 – 12:55 she spent a total of 23 seconds trying to phone Meredith though she stated she was “panicked” as to her whereabouts.
b) Amanda was back at her apartment by 12:34. The Postal Police did not show up for another 21 minutes with Meredith’s phones. Why didn’t Amanda stand outside Meredith’s door, call her phones and listen for rings? (She knew the phones were no longer in Meredith's room.)
c) Both Amanda’s mother and Filomena told Amanda to call the police based on what she told them...she didn’t. Both knew her Italian was poor, but they told her to call the police anyway...she didn't.
4. Raffaele’s call to the police:
a) He told them that nothing was taken from Filomena’s room. He knew that because he knew there was no break in.
b) He told the police “there is a lot of blood” when everyone at the scene agreed there was very little visible blood. He knew there was a lot of blood behind the locked door.
c) why would he even mention a closed door?
5. Raffaele’s lie in his prison diary regarding the knife and pricking Meredith with it.
6. Amanda’s behavior:
a) not flushing the toilet (who does not flush a toilet when they see feces in it?)
b) not looking in the murder room
7. bra clasp – it is Rafaelle’s DNA is on it.
8. evidence of a cleanup – FBI guy Steve Moore (who says he has seen all of the evidence) said no one could have left that room without blood on the bottom of their shoes.
9. Amanda knowing that Meredith's throat was slashed despite the fact that she came into no contact with anyone who would have had that information before she made that statement.