India, Sept. 21 -- Lindsay Clancy's ex-husband, Patrick Clancy, has described having a panic attack after testifying at the trial. On Sunday night, September 20, he spoke out for the first time since a mistrial was declared in the case in an interview with CBS' 60 Minutes.

Patrick took the stand on the first two days of the trial and testified about finding his kids fatally injured and Lindsay's struggles with mental health. He was recognized as a grieving father and a key prosecution witness.

"Testifying is very difficult," Patrick said, adding that on the second day, the main focus was on the day of his children's murders.

"We did take a break right before they played the 911 call, which I knew was going to be just horrific," he adde...