Thank you Alex and Martha. Back here at home to Texas, and a dramatic scene inside a courtroom in Houston. The suspect collapses as the charges are read. Accused of forcing his way into a home and... See More
Thank you Alex and Martha. Back here at home to Texas, and a dramatic scene inside a courtroom in Houston. The suspect collapses as the charges are read. Accused of forcing his way into a home and killing six members of a family. ABC's Ryan Owens is back on the story for us. Reporter: The man prosecutors say executed six members of this Texas family could not even stand on his own two feet to face those capital murder charges. 33-year-old Ron Haskell collapsed twice in a Houston courtroom. The accused killer finally had to be wheeled away with a blank look on his face. Maybe reality is finally setting in. He is facing his consequence. Reporter: A consequence that could include the death penalty if he's convicted of shooting his ex-wife's sister Katie stay, her husband Stephen, and four of their young children. Haskell's attorney says his client was dizzy in court and off his meds the day of the rampage. Our legal system recognizes that a person who is suffering from a mental illness, and can't distinguish right from wrong. Is not criminally responsible. Reporter: Haskell had been arrested for assaulting his ex-wife before, and until last had a protective order against him. But still, he somehow got a gun and allegedly murdered this family because they wouldn't tell him where to find his ex. Only 15-year-old Cassidy stay made it out alive. A bullet grazed her head. I said I was so sorry about everything that's happened, but I'm so thankful you're still here with us. But she said my mom and dad are in a better place. Reporter: Tonight, a lone survivor ree leased into the arms of her family. Ryan Owens, ABC news, Houston.
This transcript has been automatically generated and may not be 100% accurate.