The standoff between law enforcement and an Alabama man who held a boy in a bunker for seven days ended with the suspect dead and the 5-year-old safely rescued, a law enforcement source told CNN.

Reports of an explosion at Jimmy Lee Dykes' Midland City property came first on Monday afternoon, followed by media reports of the 65-year-old's death.

The crisis began Jan. 29 when authorities say Dykes boarded a school bus and demanded that he take two boys between six and eight years old. The bus driver -- Charles Albert Poland, Jr. -- is hailed as a hero for putting himself between Dykes and the children. His valor cost him his life, as Dykes allegedly shot Poland several times before taking the 5-year-old boy from the bus.

"You didn't deserve to die but you died knowing you kept everyone safe," said a letter from a student on Poland's bus that was read aloud at the bus driver's funeral.

The bunker in which Dykes holed up was four feet underground. He equipped it with electricity and was said to possibly have weeks of supplies stored. Negotiators communicated to him through a ventilation pipe. Because of the risk of tornadoes in this part of Alabama, bunkers are a relative fixture on the landscape.

Authorities sent Ethan's prescription medicine as well as items the boy requested like Cheez-Its snacks and a red Hot Wheels toy car.

There was open communication with Dykes, according to authorities, but they said he'd made few demands, making it unclear what he hoped to accomplish.

Some neighbors believed Dykes timed the abduction to nearly coincide with a court appearance scheduled for the day after he shot Poland. In December, Dykes was arrested for allegedly shooting a gun to frighten a neighbor.

For that incident and others, people who lived near Dykes were leery of him long before he became a hostage-taker. They said that he once beat a dog to death with a lead pipe, that he warned children they'd be shot for crossing onto his land and that he guarded his property at night with a flashlight and gun.

He was a loner who allegedly lost contact with an adult daughter years ago, according to people who lived near him. The sounds of conservative talk radio filled his home and fed his anti-government attitudes, locals said.

Details about Dykes slowly emerged as negotiations failed to break the impasse. Dykes was a decorated Vietname War veteran who'd served in the Navy. He'd grown up nearby, but later in life, he moved to Florida where he worked as a surveyor and truck driver. He returned to Alabama about two years ago, acquiring the rural property on a dirt road.

In 1995, he was arrested for improper exhibition of a weapon. That charge was dismissed. In 2000, he was booked on marijuana possession charges.