"DATELINE" TO AIR TRIBUTE TO SINGER WHITNEY HOUSTON SUNDAY, FEBRUARY 12 AT 7P/6C

NEW YORK, NY - February 11, 2012 - In a "Dateline" special airing on Sunday, February 12 at 7p/6c, the newsmagazine will look at the life of legendary singer, actress and producer who won six Grammy awards, two Emmy awards, and 30 Billboard Music Awards across her extensive career. Anchored by Lester Holt, the hour will report on Houston's life and career and the reaction from those who knew her.

And at 8p/7c, Luke Russert reports on Jon-Adrian Velazquez, convicted of murdering a retired NYPD officer back in 1997. An investigation 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?

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David Corvo is the senior executive producer, Liz Cole is the executive producer and Lester Holt is the anchor of "Dateline NBC" (Fridays at 10p/9c and Sundays at 7p/6c). Follow "Dateline" on Facebook and Twitter @datelinenbc.