ELKO, Nev. -- Authorities say an 18-year-old remains in a Nevada jail following her initial appearance on murder and other charges in the slaying of a 16-year-old high school student near the Nevada-Utah state line.
Toni Collette Fratto made an initial appearance Tuesday before an Elko Justice Court judge who set a July 13-14 evidence hearing. Fratto's lawyer, John Springgate, declined comment.
Fratto and 18-year-old boyfriend Kody Cree Patten are accused of killing West Wendover High student Micaela "Mickey" Costanzo after school March 3.
Court documents say Costanza's throat was cut, she was hit with a shovel and buried.
Fratto and Patten are also accused of trying to dispose of her belongings in the Utah desert.
Elko County District Attorney Mark Torvinen hasn't said if he'll seek the death penalty.