There was never really a question as to how it would end for them, only when.
He had told her many times that he would take the blame for it all, tell everyone she was innocent, that she had been tricked into things. She believed him, of course she did. She trusted him. She was a nice girl, if a bit stupid and naïve. He would still tell everyone that it was his fault, he would take all the credit, but Helen wouldn’t be alive to see that part. Already they were closing in and Helen knew too much, even more than she realised. She was no longer an asset. People were on the look out for a couple, he might have a chance to escape if he was going solo. Helen would never agree to splitting up, not that he would blame her for that. She would be lost with out him, and probably be caught in a matter of days. After that it would be all over for him. He had been too open with Helen, told her too many things. For now they didn’t know who he was and they never would. He changed names easily, creating new back stories every where he went. Helen was the only one who came close to knowing the real him. Most of what he told her were lies, but they were lies that had been based on the truth. They could use what he told her to unravel all the lies and that simply wouldn’t do. He would make it quick for her though. It was the least he could do for her.
It was quick when she went. A few sleeping pills crushed into her drink, a swift slice across her neck and it was done. She never even woke up. She’d just be another one. Some poor victim, killed by some lunatic. He didn’t stick around after he did it, only long enough to put stuff back into the car, then he started driving.
As the sun began to rise he smiled. It was good that Helen was gone. He was free to do exactly as he liked now. Perhaps he would even find a new Helen some day. Someone else to train in the mysteries of his work.