AURORA, CO- It was one year ago tomorrow when one of the worst mass shootings in the nation's history occurred. A gunman, believed to be James Holmes, walked into a Century theater in Aurora, Colorado and opened fire, killing 12 people and wounding nearly 60.

The city is marking the first anniversary with some special events. Now the theater is packed with hundreds of people watching movies just as they did the day Holmes allegedly opened fire on July 20, 2012. 

"When we come here, we do have those memories, but life doesn't stop here, life moves on," says local resident Winston Davis. He continues to say that he won't let Holmes stop him from going to the theater.

Spokeswoman Karen Morales says the 7/20 Day of Remembrance is designed to be a healing experience for the entire community. Activities begin at 7:30am throughout the day, Saturday, in remembrance of the victims of that shooting. A nature walk, blood drive and a variety of community service projects are also being held in and around Aurora.

Colorado U.S. Senator Mark Udall says the victims of the Aurora theater shootings should inspire people to be courageous and live the best lives they can.

Udall paid tribute to the victims and survivors of the shootings yesterday on the U.S. Senate floor. Udall read the names of those killed and shared stories of how the survivors have bounced back. He also thanked and praised the many police officers and emergency responders who helped the wounded people and stopped the shooter.

Holmes' is scheduled in February 2014 to stand trial. He has pleaded not guilty by reason of insanity to more than 160 counts, inlcuding murder and attempted murder. His attorneyw will argue that Holmes suffers from severe mental illness and was experiencing a powerful "psychotic episode" during last year's Aurora shooting.