
Are the following mentions coreferent?:
<m> death </m> in The recommendation of death was announced almost surreal stillness in the courtroom while the death recommendation was announced. 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. 
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<m> killing </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. 