this is taken from imdb.com so I'm not sure if it's true.
"Connor's life comes to a tragic end when a panicking Izzy decides she needs to keep him quiet . . . at any cost. Connor turns detective when he overhears a telephone conversation between Izzy and the bomber. Unbeknown to the rest of Ramsay Street, Izzy has discovered the culprit's identity and Connor wants to make it public knowledge. He does some digging on Izzy and confronts her with what he knows. Izzy breaks down. She has a far worse secret that she knows will be exposed if the bomber's identity is revealed. Connor makes his final mistake when he threatens Izzy with the police. As he storms off, Izzy panics and gets into her car, driving at Connor and running him over and killing him. Distraught at what she has done, she calls Paul and begs for help. Soon the car is being pushed into a quarry and they decide never to speak of the night's events again. News of Connor's death reaches Ramsay Street, sending shockwaves through the community. Who could be responsible for his untimely demise? As the funeral gets underway, none of the residents are aware that his murderer is in attendance. "
This sounds like a very intresting storyline and a great way for Connor to leave