2 Drops of blood!?

Ok, so guys, I know this was ages ago, But remember that night, Ali got hit with a rock,!? We saw the Blood On the rock! But there were 2 drops, Which means the person who hit Ali with a rock, was also bleeding, Which explains the Flashback Spencer had, she hit someone with a shovel thinking it was Ali, Maybe that girl Was Bethany,She was bleeding after Spencer hit her, Maybe she escaped to get revenge on Ali or Mrs.D, She hit Ali, But was still bleeding from when Spencer hit her!

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