
Are the following mentions coreferent?:
<m> disappearance </m> in The jury concluded that the circumstances surrounding Laci Peterson's disappearance and death could not reasonably be explained in any other way but that Scott Peterson wanted her dead so he could continue and perhaps expand his secret life with Amber Frey. 
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<m> disappeared </m> in Scott Peterson convicted of first-degree murder in the death of his wife, 23-year-old Laci, and second-degree murder in the death of his 8-month-old unborn son, whom the couple were planning to name Conner. Laci disappeared from the couple's home in Modesto, California, 23 months ago. 