A 25-year-old American working to bring peace and justice to northern Uganda was among those killed in Sunday's bomb attack in the country.

Nate "Oteka" Henn, who was working as an intern for San Diego-based group Invisible Children, was among the 76 people killed by an explosion in a restaurant in Kabalagala while watching the World Cup final.

"Nate's life ended while living out this dream, a selfless dream of putting others first, seeking peace, and living a life of integrity," a statement from Henn's family reads. "He will be forever missed, forever remembered, and his legacy will live on in our love and deeds."

The former University of Delaware rugby player had just arrived in Uganda a week prior, according to CNN, where he had planned to meet with Ugandan students he had befriended and helped raise money for.

Those same friends had given Henn the Acholi nickname "Oteka" which means "the strong one."

Invisible Children launched a website for Henn just yesterday to honor his time of service with the group.

"Nate worked with us at Invisible Children for a year and a half and leaves behind a legacy of honor, integrity, and service," a statement from the group reads.

"From traveling the United States without pay advocating for the freedom of abducted child soldiers in Joseph Kony's war, to raising thousands of dollars to put war-affected Ugandan students in school, Nate lived a life that demanded explanation," they said. "He sacrificed his comfort to live in the humble service of God and of a better world, and his is a life to be emulated."

A memorial fund for Henn has also been established.

Meanwhile, Anglican Archbishop Henry Orombi of Uganda condemned Sunday's attack, which was committed by militant Somali group al-Shabab, calling it "ungodly."

"This act of malice and hatred towards mankind is completely ungodly, especially towards innocent and unsuspecting persons," Orombi said. "I condemn this act in the strongest terms possible and hope to see the perpetrators of this hideous crime brought to justice."

Orombi further urged Ugandans to "desist from anger and revenge" and asked them instead to "focus our energies on being a part of the fight against terrorism in our country."

"Each one of you can use your eyes as a great weapon to fight this evil," he said. "Even as we do so, let us not breed unnecessary suspicion against one another but instead seek for the common goal of a peaceful and just society."

Along with Henn and scores of Ugandans, an Irish woman and several Ethiopians and Eritreans were killed in the blast.

Several American missionaries from the United Methodist Church were among those injured.