BIRMINGHAM, Ala. -- A pastor says the man who killed two former co-workers and then himself at a UPS warehouse had told some people that he was having problems at work but never suggested that the situation might turn violent.

A law enforcement official, speaking on condition of anonymity because the official was not authorized to release the information, identified the shooter as Joe Tesney.

Bill Wilks, the pastor at NorthPark Baptist Church, says Tesney, his wife and and his two children had been members at the church since 2003.

Wilks described the 45-year-old Tesney as being "troubled" over his work and financial situation.

Police said earlier Tuesday that an ex-employee who had been fired just a day ago entered the sorting facility through a truck dock door and opened fire, killing a supervisor and another worker.