A Utah judge says he'll rule later about whether the father of a Utah mom missing for nearly five years had the authority to make him and his wife the sole beneficiaries of a trust that could soon have about $2 million in life insurance proceeds.

Judge L.A. Dever listened to 1 1/2 hours of arguments from attorneys Tuesday about a trust set up by Susan Powell and her husband Josh Powell before she went missing in 2009.

Josh Powell is believed to have killed Susan Powell in Utah before killed himself and the couple's boys in Washington.

Dever must decide if Susan Powell's father, Charles Cox, had the right to amend the trust last year to cut out Josh Powell's mother and sister.