By Scott Sonner

Associated Press

RENO, Nev. — The 21-year-old college art student accused of putting pipe bombs in mailboxes in five states told authorities he was trying to make a smiley face pattern on the map, a sheriff said Thursday.

The first 16 bombs were arranged in two circles, one in Illinois and Iowa and the other in Nebraska. On a map, the circles could resemble the eyes of the popular 1970s happiness symbol. The final two bombs, found in Colorado and Texas, form an arc that could be the beginning of a mouth.

"There was a comment made to one of my officers about his hope to make a smiley face when he was all finished," Pershing County Sheriff Ron Skinner said.

Skinner said Luke Helder made the comments to an undercover county officer shortly after his arrest outside Reno on Tuesday.

"His demeanor was very jovial. He didn’t seem to be taking anything seriously at the time," the sheriff said.

Meanwhile, Helder’s parents, Cameron and Pamela Helder, met with their son at the county jail in Reno for half an hour. They were separated by glass and spoke by telephone.

"We are here to see our son in his hour of need," Cameron Helder told reporters afterward. "We told him we love him. I feel a lot better after speaking to him."

Helder faces federal charges in Illinois, Nebraska and Iowa, where he will be taken today for an initial court appearance. U.S. Magistrate Robert McQuaid denied a request Wednesday to release Helder to the custody of his parents.

"It’s apparent to me that he suffers from some apparent mental health problems," McQuaid said.

If convicted, Helder could be sent to prison for life. Cameron Helder said he expects the legal proceedings to be a long process.

The FBI said Helder placed 18 pipe bombs in mailboxes in Iowa, Illinois, Nebraska, Colorado and Texas, along with anti-government notes. Six of the bombs exploded last Friday, injuring four letter carriers and two residents.

The eight bombs in Iowa and Illinois were found in rural locations that form an uneven ring about 70 miles in diameter. The Nebraska bomb sites — about 350 miles away — form a ring about 90 miles across.

The other bombs were found hundreds of miles away — one in Salida, Colo., the other in Amarillo, Texas.

Authorities said Luke Helder has confessed to making 24 pipe bombs out of smokeless gunpowder, BBs or nails, paper clips and Christmas tree bulbs. The final 10 bombs found in mailboxes and the six found in his car had different detonation mechanisms and were not rigged to explode but were still dangerous, authorities said.

Helder wore a broad smile each time he was transported to and from jail and court. Washoe County Sheriff Dennis Balaam said Helder did not seem upset that his father had turned him in.

"I think he understands. I don’t think there are any ill feelings there at all," the sheriff said. "It was an emotional goodbye. It’s a difficult time for all."

The sheriff added: "I think as each moment goes by the consequences are starting to set in with him."

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