This morning, a gunman shot four firefighters -- killing two of them as they responded to a house fire in Webster, New York.

An audio tape of radio calls from the shooting has been posted on YouTube by PhillyFireNews.com, and captures the exchange between an emergency dispatcher and one of the firefighters who was shot.

PhillyFireNews.com notes that they have posted the tape, "to show the true bravery of the firefighter who was shot and pinned down due to the gun fire. Our thought and prayers go to all affected in this horrible tragedy."

In the nearly nine minute recording, one of the firefighters identifying himself as “125” tells dispatcher, "We are being shot at, multiple firemen down. I am shot. I think it was an assault rifle." The firefighter can be heard saying that he needs an ambulance and that he's been shot in the lower back and leg, adding that he was pinned down by his firetruck, which he crashed as the gunman opened fire.

Lt. Mike Chiapperini, 43, a volunteer firefighter and Webster Police Department’s public information officer, and firefighter Tomasz Kaczowka, were shot and killed, while Theodore Scardino and Joseph Hofsetter were also shot, but are recovering in guarded condition at Strong Memorial Hospital.

The shooter has been identified as William Spengler, 62, a convicted murderer, who spent 17 years in prison for killing his grandmother in 1980.

Webster Police Chief Gerald Pickering told reporters that Spengler was found dead outside the home where the shootings occurred, killed by a self-inflicted gunshot.

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