Heavily armed law enforcement officials surround the property where a five-year-old boy is being held captive in Alabama.
Jimmy Lee Dykes, a retired trucker and Vietnam veteran, has been identified as the suspect.
Authorities say they have held sporadic negotiations with the suspect through a pipe connected to his subterranean bunker.
The boy has been held since Tuesday, when he was pulled from a school bus. The driver of the bus was killed.
Officials have said they believe the boy has not been harmed.
