THE BRONX - Protesters hand-delivered a signed petition Wednesday to the office of U.S. Attorney Preet Bharara demanding a federal investigation into the death of a Bronx teen killed by police.

Ramarley Graham's parents, Constance Malcolm and Frank Graham, were joined by hundreds of supporters for a press conference in Manhattan before marching the petition, with more than 33,000 signatures, directly to the Department of Justice.

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Graham's loved ones say they have heard nothing about the case since the department agreed a year ago to look into it. They're now calling for a response within 30 days.

There have already been two failed indictments against Officer Richard Haste, who is accused of shooting the unarmed 18-year-old inside his Wakefield home back in 2012.