Talk:EscApe From New York/@comment-24752981-20140405063337/@comment-96.2.62.175-20140407025103

Marlene revealed in interviews that Ezra hired private investigators (which explains the cameras) to help watch over and protect the girls so A couldn't get to Aria/the PLLs. Watch in 418 when a mysterious person was taking photos and sending them to Ezra. That was a PI. Nothing to do with A or him doing anything to be malicious or bad.

They also said within S4 when he found out A was back, the book turned into figuring out who A was. He was trying to piece it all together and help them.

I know since none of that was explained on the show you don't understand how people could just assume that, but that's typical of the PLL writers. Since Marlene said all of that in an interview thought that's just how it is.