Friends and relatives held a candle-lit vigil late on Friday for the victims of a massacre at a Batman film screening, which left at least 12 people dead and nearly 60 injured.

Some 200 people gathered near the Century Aurora 16 multiplex where the gunman, identified as James Holmes, 24, opened fire at a midnight screening of The Dark Knight Rises.

“We don’t know all the victims yet, we have families that are calling us to find out where their children might be,” non-denominational Christian pastor Thomas Mayes told AFP.

“One good friend of ours in the church has a 20-year-old son who is missing, and his best friend hasn’t answer either, they’re in disarray,” he said, speaking before the evening vigil.

Many of the mourners at the vigil, held on the parking lot of a clinic across the street from the movie theatre, could be seen sobbing and hugging each other.

Some left groups of candles and flowers on the lawn, while one letter read: “To all the innocent souls... This is for you. We will never forget. This is Aurora.”

Banners read ‘Aurora is strong’, and another simply: ‘Unity’.

Jesse Larson, 20, led a prayer with 10 young boys and girls, all hugging in circle. When the pray finished, they were all crying.

“I was actually going to see that movie last night,” he said, but didn’t have enough money, “so I didn’t go... I’m very lucky that I didn’t go. But you can’t really control it. We just don’t know ourselves.

Patty Almond, who described herself as “just a mother,” said: “I knew some of the boys over there. They’re all friends, my son goes to school with them. Some of their friends are OK, we just knew one of them is not, he did not make it, we are praying for him insanely,” added the 38-year-old.

Mayes recalled the 1999 Columbine massacre, in which two heavily-armed students killed 13 people and wounded 23 others before turning their guns on themselves at their school in Columbine, barely 32 kilometres from Aurora.

“I was here. It’s the same empty feeling that you have no control, that the safety of the community is in jeopardy... Where can we go to be safe with things like this?” he asked.

No motive is yet known for the Aurora killings, but the cleric speculated that Holmes could have been influence by seeing violence in films, including in the latest Batman film.

“So much of the violence in the movies, we accept so much violence. This kid probably was imitating something he saw, maybe in the trailer of this same movie,” he said.

In another show of remembrance for the victims, the Colorado Rockies Major League Baseball wore black wrist bands at their game against the San Diego Padres.

A moment of silence was held before the game in San Diego – coincidentally where Holmes lived before moving to Colorado.

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