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DENVER (KDVR) — A traditional Catholic requiem Mass was held Monday for fallen Boulder Officer Eric Talley.

The Mass, which was held at the Cathedral Basilica at East Colfax Avenue and Logan Street in Denver began at noon. You can re-watch the service on our Facebook page.

More than 800 vehicles from law enforcement agencies all around the country lined the streets around the cathedral.

Officer Talley was among the 10 people killed when a gunman opened fire at a Boulder King Soopers on March 22.