
Are the following mentions coreferent?:
<m> first degree murder </m> in An Oklahoma jury has found 27 year old Christopher Simpson guilty of first degree murder of his then pregnant 20 year old girlfriend Ka'loni Flynn and their 12 week unborn child. 
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<m> second-degree murder </m> in 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. 