The jury deliberated Monday for about four hours before arriving at the guilty verdict. The trial moved into the punishment phase. Jean faces the death penalty.
Baytown police say in April of last year, the teens caught Jean pouring gasoline inside the home of Lang's mother. Then Jean beat the girls to death with a baseball bat and set the home on fire.Prosecutors say Jean had threatened to kill his ex-girlfriend. Jean said he did not commit the crime.
