Nick murdered two people on Eastenders. Janine did NOT murder anybody. In Barry's case, it was an accident because she pushed him away. She stabbed Michael because she would have killed her. Actually, it looks like Tina's fall was an accident also. I don't think that Rob meant for her to fall from the balcony. I'm pretty sure that Louise didn't murder Ray either and that his death was self-defense. Carl didn't intentionally murder his father either: that was in the heat of the moment. Tracy was jailed as is Stacey so you can't really say they got away with it. So far, Nick is the only ones that got away with cold-blooded murder. I believe that Ronnie killed Carl in the heat of the moment.