Lori Vallow Daybell murder trial concludes with closing arguments.

An investigator in the trial of Lori Vallow Daybell, the mother charged with murder, conspiracy and grand theft in connection to the deaths of her two children and Tammy Daybell, revealed that her brother, Alex Cox, made internet searches related to guns and shooting from a distance on the same day Tammy Daybell reported being shot at. Prosecutors believe Cox was an accomplice in the murders. The prosecution and defense have clashed over whether Tammy Daybell was shot at with a real gun or a paintball gun. Both sides have rested their case, and closing arguments will begin on Thursday.