The Anchorage duo who threatened and harassed a Native man while he was walking down the street two years ago have been sentenced to prison terms on felony civil rights violations.

Robert Gum, 19, was sentenced to 20 months in prison, and Deanna Scaglione, 21, also known as Deanna Powers, was sentenced to 16 months. Both were given three years of probation, according to court documents.

Federal prosecutors said that the two pursued the Native man, who was on his way to Bean's Cafe, by car and on foot and verbally and physically threatened him -- pelting him with eggs and a water bottle, saying they'd hurt him with a baseball bat and a gun and shouting racial slurs. They took turns recording their June 2008 attack on a video camera and Scaglione later posted clips of the bullying on YouTube.

The two were turned in by a woman who helped raise Scaglione after Scaglione's mother died. The woman called Crime Stoppers, a privately operated tip line.

Gum and Scaglione were arrested in 2009. They admitted to investigators that their attack was racially motivated and that it was Gum's idea. They also admitted that they egged two other Alaska Natives in downtown Anchorage that night, according to prosecutors.

In a plea for leniency, Gum's grandfather wrote that Gum recognized that he had done something very wrong and needed to make amends. But he said his grandson has many Native family members and is "not a racist."

Gum was "a very young man" who committed a stupid crime while "trying to be noticed by his friends," the grandfather wrote.

During the sentencing in federal District Court, the victim of the assault gave a powerful testimonial to the court, said Assistant U.S. Attorney Kevin Feldis, the prosecutor in the case.

The victim "spoke about the impact on him, the fear and the hurt he felt, but also how he moved forward and (his) forgiveness" of his attackers, Feldis said.

The case was investigated by the Anchorage Police Department and the Federal Bureau of Investigation.

"Conduct like the assault that occurred in this case is a crime not only against the victim but also against our entire community and must be appropriately punished," said U.S. Attorney Karen Loeffler after the sentencing.

State prosecutors have also charged the two on misdemeanor assault and harassment charges. Sentencing in that case has been set for later this month.