(CBS/AP) MIDLAND CITY, Ala. - The FBI says the Alabama man who held a 5 year old boy captive in an underground bunker for nearly a week engaged in a "firefight" with SWAT agents before he was killed during a rescue operation.
Special Agent Jason Pack said in an email that it also appears 65 year old Jimmy Lee Dykes "reinforced the bunker against any attempted entry by law enforcement."
Pack said bomb technicians found two explosive devices Tuesday on the property. He said one was inside the bunker, the other was located inside the plastic pipe through which he had been talking with negotiators.
Officers killed Dykes on Monday, six days after he boarded a school bus, fatally shot the driver and abducted the young boy.
Authorities said Dykes gunned down a school bus driver Tuesday and abducted a 5-year-old boy from the bus before taking him to an underground bunker on his rural property. The driver, 66-year-old Charles Poland Jr., was buried Sunday.
"He always said he'd never be taken alive," said an acquaintance of Dykes, Roger Arnold, "I knew he'd never come out of there."
Dykes, a decorated Vietnam-era veteran described as a loner who railed against the government, lived up a dirt road just off the main road north to the state capital of Montgomery, about 80 miles away.
Late Monday, officers were sweeping the property to make sure Dykes has not set up any bombs that could detonate.
Neighbors described hearing what sounded like gunshots around the time officials said they entered the shelter.
Michael Senn, pastor of a church near where reported had been camped out since the standoff began, said he was relieved the child had been taken to safety. However, he also recalled the bus driver who had been hailed as a hero for protecting nearly two dozen other children on the bus before being shot by Dykes.
"As we rejoice tonight for (the boy) and his family, we still have a great emptiness in our community because a great man was lost in this whole ordeal." Senn said.
The rescue capped a long drama that drew national attention to this town of 2,400 people nestled amid peanut farms and cotton fields that has long relied on a strong Christian faith, a policy of "love thy neighbor" and the power of group prayer. The child's plight prompted nightly candlelight vigils.
Throughout the ordeal, authorities had been speaking with Dykes though a plastic pipe that went into the shelter. They also sent food, medicine and other items into the bunker, which apparently had running water, heat and cable television but no toilet. It was about 4 feet underground, with about 50 square feet of floor space.
Authorities said the kindergartner appeared unharmed. He was taken to a hospital in nearby Dothan. Officials have said he has Asperger's syndrome and attention deficit hyperactivity disorder.
Melissa Knighton, city clerk in Midland City, said a woman had been praying in the town center Monday afternoon. Not long after, the mayor called with news that Dykes was dead and that the boy was safe.
"She must have had a direct line to God because shortly after she left, they heard the news," Knighton said.
Neighbors described Dykes as a menacing, unpredictable man who once beat a dog to death with a lead pipe. Government records indicate he served in the Navy from 1964 to 1969, earning several awards, including the Vietnam Service Medal and the Good Conduct Medal.
He had some scrapes with the law in Florida, including a 1995 arrest for improper exhibition of a weapon. The misdemeanor was dismissed. He also was arrested for marijuana possession in 2000.
He returned to Alabama about two years ago, moving onto the rural tract about 100 yards from his nearest neighbors.
Arnold recalled that, for a time, Dykes lived in his pickup truck in the parking lot of the apartment complex where Dykes' sister lived. He would stay warm by building a fire in a can on the floorboard and kept boxes of letters he wrote to the president and the unspecified head of the mafia, Arnold said.
Dykes believed the government had control of many things, including a dog track he frequented in the Florida Panhandle. Arnold said that Dykes believed if a dog was getting too far ahead and wasn't supposed to win, the government would shock it.
Ronda Wilbur, a neighbor of Dykes who said the man beat her dog to death last year with a pipe, said she was relieved to be done with the stress of knowing Dykes was patrolling his yard and willing to shoot at anyone or anything that trespassed.
"The nightmare is over," she said. "It's been a long couple of years of having constant stress."
CBS radio affiliate WSB says reporters heard what may have been a concussion grenade before ambulance and fire vehicles went to and from Dykes' property about 4p.m. Eastern Time Monday.