911 audio details how marathon bomber manhunt ended

WATERTOWN, Mass. — Sunday marks the one year anniversary since convicted Boston Marathon Bomber Dzokhar Tsarnaev was sentenced to death.

For the first time, 911 audio call have been released that reveal how the manhunt in 2013 ended.

RAW AUDIO: Hear all of the 911 call

The call came from a Watertown home.

Caller: "I  have a boat in my yard. There's blood all over the inside. There's a person in the boat."
Operator: "Are you sure?"
Caller: "I  just looked in the boat."

David Henneberry called police after spotting a body in his boat. The dispatcher told him to stay in his home.

Operator:  "Can you look at the boat without making yourself noticeable?"
Caller: "I  can look at it right now."
Operator: "Let me know if anything moves or anything like that, okay?"

Caller: "He didn't move. He's laying down alongside the engine inside the boat."
Caller: "I don't know if he's getting out the other side, if he knew I showed up."

Caller: Hello?"
Operator: "Hey."
Caller: "I'm outside."
Operator: "Go back inside."
Caller: "I can hear....I can see the whole boat from outside..."
Operator: "Don't put yourself in harms way."

Within three minutes, law enforcement was at the Franklin Street home moving in. As officers arrived, Mr. Henneberry ended his 911 call.

Tsarnaev would soon be taken into custody, ending the lockdown.

Cox Media Group