BIRMINGHAM, Alabama – "Oh, my gosh," the caller, a male employee at the Birmingham UPS office, told the 911 dispatcher. "There's blood all over the place."

The caller was describing the scene Tuesday at that Inglenook Lane office, where Joe Tesney, who was recently fired from UPS, shot and killed two UPS employees, Brian Callans, 46, and Doug Hutchenson, 33, before shooting himself in the head just after 9:30 a.m.

"A disgruntled former employee shot two people and then turned the gun on himself," the man told the dispatcher in 911 tapes obtained by AL.com.

When asked by the dispatcher if the victims were breathing, the caller said no. "They're not breathing," he said.

Later in the call – one of six calls about the incident – the man tells the dispatcher that Tesney, 45, had problems.

"He's had issues," the caller says. "He's got mental issues."

Shortly after that, the man says police have arrived at the scene, and the call ends.

Police arrived to find three dead inside the business. The weapon used in the killing was found underneath Tesney.

"We have a shooting at UPS, shooting at UPS, Inglenook Boulevard, and they're bad," another male caller told the dispatchers. "There's three people dead, or three people shot. Murder-suicide, it looks like."

"Is the person who did the shooting still there?" the dispatcher asks.

"We can't tell," the man responds. "I'm way on the other side of the yard trying to hide. I don't see him, but I heard two fired – two shots."

In another call, a female UPS employee, hiding in her office, can be heard screaming to a co-worker to keep a door closed.

"We need somebody at 4601 Inglenook at UPS," the woman says, breathlessly. "We need police, we need medics, we need everybody!"

When the dispatcher asks where the shooter is, the woman can be heard sobbing. "He's gone; he killed himself," she says.

"That's what they're saying," she responds when asked to confirm that Tesney killed himself.

By the end of the call, police had arrived and begun to clear the building.

Not all the calls came from inside the office. One appears to have been from a man nearby who heard the shooting. "Sounds like shots fired up at the UPS store," he tells the dispatcher.

The dispatcher can then be heard calling on the radio for all available units to respond to the scene, and described the suspect as a white male in a UPS uniform.

"All units be advised, we have an active shooter," the dispatcher says.

A funeral for Hutcheson, a husband and father of 4-year-old twins, is scheduled for Saturday. A service for Callans, a 26-year UPS employee who was engaged to be married, is set for Sunday.

Carol Robinson contributed to this report.