See photos from inside Connecticut home where police say woman held stepson for 20 years

A Connecticut woman, Kimberly Sullivan, 56, was arrested after being accused of keeping her stepson captive for two decades. unbranded - Newsworthy

Police in Connecticut have released photos from inside the home where they say a woman held her stepson against his will for over two decades.

Kimberly Sullivan, 56, was arrested in March and accused of holding her 32-year-old stepson in captivity, subjecting him to "prolonged abuse, starvation, severe neglect, and inhumane treatment," Waterbury police said in a Facebook post at the time of the arrest.

Court records show that Sullivan pleaded not guilty to charges of first-degree assault, second-degree kidnapping, first-degree unlawful restraint, cruelty to persons and first-degree reckless endangerment.

USA TODAY obtained the photos from Waterbury police on Tuesday.

Sullivan's attorney, Ioannis Kaloidis, railed against their release in a statement published by NBC Connecticut.

"The release of sensitive evidence by the Waterbury Police Department in a pending and active investigation is shocking, offensive and quite frankly, ethically questionable," Kaloidis said. "Justice requires the protection of constitutional rights and ultimately, a fair trial. We call for an immediate investigation into the release of these photos and videos."

The images released by the police department reveal a home cluttered and in disarray, and show the room where police say Sullivan's stepson started a fire, which led authorities to respond and find him. The stepson told first responders, "I wanted my freedom," police said.

Here are some of the images.

In photos: Home of Kimberly Sullivan