Audio of Omar Mateen’s 911 calls during Pulse nightclub massacre released

ORLANDO, Fla. — We're learning more and more about the mind of a killer in the wake of recently released 911 calls from Orlando police.

The caller — later identified as Omar Mateen — opened fire at Orlando's Pulse nightclub killing nearly 50 people and injuring the many others on June 12, a day that will be remembered as one of the most horrific mass shootings in American history.

Mateen: My name is Islamic soldier, OK?

Negotiator: Okay. What can I call you?

Mateen: Call me Mujahideen, call me the Soldier of the God.

Mateen freely admitted to having ties to terrorist beliefs while talking to dispatchers and police negotiators in the hours after the massacre.

Mateen: You're speaking to the person who pledged allegiance to the Islamic State.

Mateen also made reference to previous terrorist activity.

Mateen: My homeboy Tamerlan Tsarnaev did his thing on the Boston Marathon, my homeboy (unidentified name) did his thing, okay, so now it's my turn, OK?

The negotiator pleads for a peaceful resolution, but the admitted shooter repeatedly blames air strikes in the Middle East as his motivation.

Mateen: You need to stop the U.S. air strikes. They need to stop the U.S. air strikes, OK?

Negotiator: I understand.

Mateen: They need to stop the U.S. air strikes. You have to tell the U.S. government to stop bombing.

Dozens of innocent people in Orlando lay dead or dying but these recordings illustrate Mateen showed no remorse. Instead, he rants about bombs he promised to detonate, which were never found, and other threats of more mass violence.

Mateen: Let it be known in the next few days, you're going to see more of this type of action going on, OK?

City officials never wanted us to hear these 911 tapes, but several news organizations pressed for their release. A Florida judge ruled the calls should be part of the public record. They will also be posted on the city of Orlando's website.

Negotiator: Tell me what you did, please.

Mateen: You already know what I did.

For those who've lost loved ones during the bloodbath, hearing the voice of the killer is sure to re-open some barely healed wounds.