A woman sought to kill her husband. She developed an elaborate plan that involved cutting the brake lines on his automobile while his car sat in his office parking lot. On the morning of the planned killing, the woman walked with her husband to the garage. Watching as her husband began to pull his car out of the garage, the woman activated the switch to shut the garage door. The switch malfunctioned and as result the garage door came crashing down on the car and crushed the husband to death. For which crime could the woman properly be found guilty