
Are the following mentions coreferent?:
<m> kill </m> in Scott Peterson was found guilty because jurors believed he had a motive to kill his wife and that Peterson's conduct before, during and after Laci Peterson's disappearance was too suspicious to be purely coincidental. 
</s>
<m> murder </m> in Upon learning of his death sentence, Scott Peterson sat defiantly still and tight-jawed, the same vacant expression he wore throughout a murder trial in which he never spoke.