Thousands of people filed into Conseco Fieldhouse on Tuesday morning for the funeral of Indianapolis police Officer David Moore, who was fatally shot while on duty last month.The funeral got under way at 10 a.m. Before services began, sirens blared through downtown as the hearse carrying Moore's body traveled from a funeral home to the fieldhouse. Updated Slideshow: Watch Live: Moore's Funeral About 2,000 people, many of them fellow police officers, poured into funeral in spite of the winter storm, 6News' Derrik Thomas reported.Moore's father, retired Lt. Spencer Moore, and his mother, Sgt. Jo Moore, arrived early for the services, with Jo wearing her son's high school letter jacket from Roncalli.Spencer Moore thanked the police community for their unwavering support."He believed in you so much and he always did his best," he said. "He loved his core family with all his heart, but it was you that gave him purpose and immense pride."Police Chief Paul Ciesielski said Moore's tremendous sacrifice does not mean surrender."While we grieve, we will not waiver," he said. "Our commitment to excellence, service and reducing violent crime will only become stronger, because that is what David would have wanted."A funeral procession had been planned to wind its way through the city in honor of Moore, but the procession was canceled because Moore's family feared icy conditions could pose a threat to public safety.Hundreds of officers from more than 20 suburban police agencies volunteered to provide police protection across Indianapolis during the funeral."We'd love to be at the funeral to show our support. This is one way to show support," said Noblesville police Sgt. Bob Busalacchi."It's a family. You go anywhere in the country and you run into an officer, it's like you know them. So, Moore's death hits home," said Speedway police Officer Kyle Hodges. "If I can work a beat so they can go to the funeral and take time to grieve with each other, then that's the least I can do."Moore was fatally shot on Jan. 23 while conducting a traffic stop on Indianapolis' east side. He died three days later."The peace officers and firefighters are the real superheroes of our society," said U.S. Rep. Andre Carson. "It's only right that we pay respect to them and see the need and the service and the sacrifice that they make each and every day on our behalf."After the ceremony, Moore's casket was loaded into a hearse outside the fieldhouse and his family members released balloons in his honor.Moore will be buried at Crown Hill Cemetery on the city's north side in a private ceremony at a later date.