D send his enemy A a parcel bomb which was designed to explode and kill A when A opened it.
Shortly after he posted the bomb D repented of his plans and phoned the police to warn them of
What he had done. He gave the police detailed instructions as to how to disarm the bomb B
A member of the bomb Squad was given the job of defusing the bomb but in doing so he
Accidentally cut the wrong wire. As a result the bomb blew up and B was killed
Is D guilty of murder ?