LITTLETON, COLO. ? Hundreds attended a sunset candlelight vigil on Sunday to honor the 13 victims of the Columbine High School massacre on the eve of its 10th anniversary.

A steady stream of visitors walked slowly around the Columbine Memorial in a park next to the school in Denver’s southern suburbs. Wildflowers or florists’ bouquets rested on each of the tablets bearing the victims’ names.

The high school will be closed today, the anniversary of the attack, and a private service for families of victims was planned tonight at the memorial.

“It is a time for the community to come back together again as they did following the shootings 10 years ago,” said organizer Kirsten Kreiling, president of the Columbine Memorial Foundation.

Families of several of those killed attended but didn’t address the crowd.