Praised as a hero who wanted to help the New York Police Department evolve, slain Officer Jason Rivera drew tributes and vows that the force will "never give up" at a funeral Friday for the rookie who was gunned down with his partner last week. Police filled the pews at St. Patrick's Cathedral, and a sea of blue uniforms stretched for blocks as snow drifted outside the city's iconic church. Rivera, 22, and Officer Wilbert Mora, 27, were fatally wounded Jan. 21 by a gunman who opened fire on them in a hallway as they responded to a family dispute. Through tears, Rivera's wife, Dominique Luzuriaga, recalled the horror of seeing cellphone alerts about two officers being shot in Harlem. Her worries grew as she texted and called the former elementary school classmate she married this past October. She got no answer until the call that summoned her to a hospital where he was pronounced dead. (From The Associated Press) 📸: @plattys1 and @alexirosenfeld, @gettyimages; @timothyclary, @afpphoto via @gettyimages #nypd #newyork #police #jasonrivera