
Are the following mentions coreferent?:
<m> first-degree murder </m> in Peterson was convicted of first-degree murder for the death of Laci Peterson and second-degree murder for the death of their unborn son just before Christmas 2002. The same jury that recommended Peterson's penalty found him guilty of the first-degree murder of his wife and the second-degree murder of his unborn child. The difference between the first-degree murder of his wife and the second-degree murder of his unborn child was so large that it could only have been committed by two people. 
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<m> first-degree murder </m> in A jury found Scott Peterson guilty Friday of killing his pregnant wife, Laci, and their unborn child in the saga of suburban adultery and betrayal that transfixed much of the nation for nearly two years. Peterson, a 32-year-old fertilizer salesman from Modesto, showed no emotion, staring stonily at the jury box as the foreman announced a finding of first-degree murder in the death of Laci and second-degree murder in the death of their near-term son, whom the couple had named Conner. 