Who Pushed Peter on GENERAL HOSPITAL?

Once she learned about all of Peter's various crimes, Maxie wanted to make sure that she protected their daughter from him as soon as she was born. While she gave the infant to Brook Lynn for safe keeping, perhaps Maxie thought the only way to truly keep Peter away from Louise was to kill him?

Liz was absolutely devastated by Franco's murder, and when she learned that not only was Peter the one who shot him but that he'd framed Jason for the crime, she vowed to make sure that the villain paid. Could they have had a confrontation that inspired the nurse to give Peter a deadly shove?

When Cameron thought that Jason had killed Franco, he was determined to bring the guy to justice, even taking the law into his own hands! While he was unable to pull the trigger when he had Jason in his sights, Cam could have very easily taken down Franco's real killer without a weapon.

While believing herself to be Peter's mother, Anna overlooked his multitude of misdeeds, and even once learning that her twin, Alex, really gave birth to Faison's evil spawn, she still covered up for him. As an international spy, killing is part of Anna's job description, so her guilt over letting Peter get away with everything for so long could have inspired her to take him out once and for all!

Bad enough that Peter tried to poison Finn, but after Chase was the one to drink the tainted coffee and land in the hospital near death, the villain refused to offer an antidote and simply delivered the occasional treatment to the doc. While it's unlikely Finn would kill Peter without having the cure first, you never know what could happen in the heat of the moment!

We still don't know exactly who this nurse is that took over for the real Chloe Jennings after Peter murdered her but she's clearly capable of just about anything! Since their plan went downhill fast, Chloe could have climbed up out of that pit in the woods and returned to Port Charles seeking revenge for getting her into this mess!

Spinelli has made no secret of how much he loathes Peter, and the bond that Spinelli shares with Maxie is so strong that he would do anything to protect her. But would that include murder? 

Valentin has been involved with some of Peter's schemes, but he eventually drew a line in the sand and found himself on the other side, working with Anna to bring him down. You can never underestimate a Cassadine... plus, he literally threatened to kill him!

Although Dante has seemingly been cured of the programming that put him in thrall to Dr. Kirk and Obrecht as their pawn to take Peter out of the picture permanently, might there still be some remnant of it in there? Could Dante finally have completed his mission?

Dr. O vowed revenge on Peter for framing her for crimes he committed and getting her locked up in prison. Since her attempts to use Dante as a pawn to kill the guy eventually failed, we can totally see her taking matters into her own hands!