BOSTON — Nga Truong filed a suit against the city after spending three years in prison awaiting trial on charges brought on the basis of a confession a judge later said was coerced.

BOSTON — Nga Truong, 21, is suing the city of Worcester after she spent almost three years in jail before being freed on a charge of murdering her toddler son.

WORCESTER, Mass. — We follow-up on a coerced confession involving a 16-year-old girl charged with murdering her 13-month-old son. The Worcester Police Department has still not made an accounting.

We continue our special report on a coerced murder confession by exploring how the case fell apart and what, if anything, has changed in the Worcester Police Department. We also speak with the now-out-of-jail Nga Truong.

In 2008, two Worcester detectives spent two hours interrogating a 16-year-old girl whose baby son had just died, until they forced from her what was later judged a coerced confession of murder. We’ve obtained exclusive video of the confession.

BOSTON — See exclusive interrogation videos from our special report. And watch as WBUR’s David Boeri reflects on the case.