WICHITA, Kan. (AP) — Four suspects in the deaths of one defendant’s adoptive parents in suburban Wichita return to court to hear the evidence against them.

A preliminary hearing Thursday will lay out the state’s case so Sedgwick County District Judge Jeffrey Goering can decide whether the evidence is sufficient to proceed to trial on capital murder charges.

Forty-eight-year-old Roger Bluml and 53-year-old Melissa Bluml were both shot in the head Nov. 15 at their home near Valley Center. Melissa Bluml died the next day, and her husband died Dec. 21.

Charged in the case are the couple’s adopted teenage son, Anthony Bluml and his biological mother, Kisha Schaberg, of San Diego. Also charged are two of Anthony’s former classmates, Branden Michael Smith and Andrew Wallace Ellington.