20/20 ABC Tonight: “A Killer Renovation” July 11 2025

ABC’s 20/20 returns Friday, July 11, 2025, with the powerful encore presentation of A Killer Renovation, airing from 9:01–11:00 p.m. EDT. Anchored by Deborah Roberts, the episode explores the brutal murder of Shanti Cooper-Tronnes and the twisted motives that investigators believe were hidden beneath the surface of a seemingly routine home renovation.

In 2018, Shanti was found dead in the Orlando home she shared with her husband, David Tronnes. At first, police suspected a break-in, especially after discovering that Shanti’s $15,000 diamond ring was missing. But as detectives looked deeper, the theory of a botched robbery began to unravel. What emerged was a tangled story involving a stalled renovation project and a husband hiding a double life.

The couple’s home was slated to be featured on the A&E show Zombie House Flipping, but the project had turned into a source of stress and secrecy. Prosecutors would later argue that the renovation was more than just cosmetic—it was a cover for a deeper deception. As the case unfolded, it became clear that the home, and what it represented, played a central role in the motive behind Shanti’s murder.

The episode features exclusive, post-trial interviews with Shanti’s teenage son, Jackson Cooper, and her ex-husband, Jim Cooper. Jackson, now 15, is praised for his strength and determination as he speaks out about his mother and the fight for justice. Detectives Teresa Sprague and Barbara Sharp, who led the investigation, offer firsthand insight into how they uncovered the truth.

Also featured are prosecutors Michael Smith and Will Jay, close friends Dana Duran and Melissa Brzezinski, former prosecutor Ryan Vescio, Shanti’s stepfather Jeff Dow, and Zombie House Flipping host Keith Ori. Each interview adds another layer to the portrait of a woman whose life was cut short by a calculated act of violence.

A Killer Renovation revisits a case that shocked a community and explores how ambition, deception, and a dream home turned into a nightmare. Tune in Friday night on ABC, with streaming available the next day on Hulu.