Preview: 'Conviction'

Jon-Adrian Velazquez, convicted of murdering a retired NYPD officer in 1997, is serving 25 years to life in Sing Sing Correctional Facility. But a 10-year Dateline investigation revisits all the key players, asking the question – is Velazquez actually innocent? Luke Russert reports 'Conviction' on Sunday, February 12th, at 8pm/7c. (Dateline)

MSNBC | February 7, 2012

Tags:. .velazquez. .russert. .revisits. .dateline. .nypd