On Sunday, February 12 at 7p, Luke Russert tells the story of Jon-Adrian Velazquez, convicted of murdering a retired NYPD officer back in 1997. An investigation that the “Dateline” team has been working on for 10 years, Russert interviews Velazquez, his mother, former girlfriend, sons, eyewitnesses and attorneys.

They also recount the timeline - asking the question – is Velazquez, who is serving 25 years to life in Sing Sing Correctional Facility, actually innocent?