(AP) AURORA, Colo. - Shooting suspect James Holmes applied to join a Colorado gun range last month but never became a member because of his behavior and a "bizarre" message on his voice mail greeting, the range's owner said Sunday.
Holmes, 24, emailed an application to join the Lead Valley Range in Byers on June 25 in which he said he was not a user of illegal drugs or a convicted felon, said owner Glenn Rotkovich.
But when Rotkovich called to invite him to a mandatory orientation the following week, he said he heard Holmes' voice mail greeting that was "bizarre - guttural, freakish at best."
It identified the number as belonging to "James," so Rotkovich said he left a message.
He left two other messages but eventually told his staff to watch out for Holmes at the July 1 orientation and not to accept him into the club, Rotkovich said. His comments were first reported by Fox News.
"There's something weird here," Rotkovich said he concluded.
Holmes is being held without bond on suspicion of multiple counts of first-degree murder after a shooting rampage minutes into a premiere of the new Batman film "The Dark Knight Rises" early Friday that left 12 people dead and 58 wounded. He is scheduled for an initial hearing Monday and has been assigned a public defender.
President Barack Obama left Washington for Colorado on Sunday to visit with the families of victims. The city of Aurora planned a vigil to remember the dead and wounded in the shooting later in the evening.
The gunman's semiautomatic assault rifle jammed during the attack at the Aurora movie theater, forcing him to switch to another gun with less firepower, a federal law enforcement official told The Associated Press. That malfunction and weapons switch during the shooting rampage might have saved some lives.
As the investigation into the massacre continued Sunday, the University of Colorado said it was looking into whether Holmes used his position as a graduate student to order materials in the potentially deadly booby traps that police said they found in his apartment.
Holmes got deliveries over four months to his home and school, authorities have said. The university is looking into what was received at the school to assist police with their investigation, said spokeswoman Jacque Montgomery.
The suspect was described as a budding scientist, brimming with potential, who pursued a graduate program even as he planned the attack with "calculation and deliberation," police said.