A man charged with arson says he was trying to blow up a building, but now regrets that decision.

The fire that started outside of the Georgetown Walgreens Sunday night was out in seconds, but Scott County Sheriff Tony Hampton says someone could have been seriously injured because it was lit next to a display of propane tanks.

The man charged with lighting that fire, Michael Adair, was candid about what he was trying to do when he was interviewed Tuesday in the Scott County Detention Center.

"I tried blowing up Walgreens, but I didn't succeed," Adair said. "But I tried, yeah, I'm not gonna sit here and say I'm innocent."

Sheriff Hampton said Adair told deputies he was obsessed with serial killers and fire.

"He said he was trying to blow up the propane tanks do to his obsession with fire," Hampton said.

Hampton says surveillance video shows Adair lingering outside of the pharmacy before lighting toilet paper on fire and trying to leave it burning on top of the propane display.

Adair was arraigned Tuesday afternoon. His attorney entered not guilty pleas to charges of arson, wanton endangerment, shoplifting, and public intoxication.

The 21-year-old said the reason he has such violent thoughts is because of bullying he's experienced his entire life.

"I got bullied hard," he said. "I got thrown in a trash can."

He says he knows someone could have been seriously hurt, including himself.

"I ain't suicidal but if it would have happened, it would have happened."

He also says he's sorry about the attempt and hopes to get counseling while he's in jail.

"I do want help, with my thoughts yeah, I really do, I'm not going to lie about that," he said.

"Hopefully, with this man's defense team and some counseling, we can get him some help," sheriff Hampton said.

Adair will be back in court Thursday for a status hearing.