Why does A make Spencer out to be a murderer?:-
In Season 6 Episode 4 Don’t Look Now Spencer gets her flashbacks from the dollhouse. She was seen with blood all over her clothes and blood all over the floor, she looks at the camera and shouts “What have I done!”.
It’s all starting to make sense now, we find out that Charles is REALLY dead! Have a look at my previous post Charles is Dead?
The only other person we know that was in Radley was Bethany and as I said before, she has been overlooking the whole thing.
So here’s something interesting, it’s possible Spencer was in Radley the same time as Charles in her previous Radley and drug addiction history.
Spencer was addicted to drugs and in the episode when Aria read out the name of Charles’ medication –
Spencer knew that they were anti-depressants, she was familiar with his pills.
So, here’s why I think Spencer killed Charles:
Spencer was in Radley with her drug addiction, she knew Charles whilst she was there.
Bethany was in Radley when Spencer and Charles were in Radley.
Charles has his medication and Spencer wasn’t allowed to take any pills.
Spencer swaps Charles’ medication with something else (possibly other pills) and keeps the anti-depressants for herself.
Charles now has other pills and has a bad reaction to them that causes his death. Remember Mr DiLaurentis said that he was taking pills and that caused his death.
Mrs DiLaurentis could possibly have known about what Spencer did but she couldn’t admit to it because she had to keep Charles a secret.