A US factory worker who opened fire on his co-workers, killing one and wounding six others before taking his own life, had just been sacked from his job.
Police in Indiana are also investigating reports that factory managers may have been worried enough after an argument with Robert Wissman that they warned employees to be on the look-out for him.
Wissman, 36, had left the Nu-Wood Decorative Millwork plant in Goshen, Indiana, but returned a few hours later with a shotgun, walked inside and opened fire, Elkhart County Sheriff's Captain Julie Dijkstra says.
Nu-Wood manager Mr Greg Oswald was killed, Goshen Police Chief Terry Schollian says.
Mrs Tammy Funderburk says she spoke on her mobile phone to her son, a factory employee who escaped uninjured.
"He saw the gunman coming and he had a big rifle," Mrs Funderburk said. "He saw the gunman shooting people and he ran out the back door as fast as he could."
Armed police entered the factory nearly two hours after the afternoon shootings, uncertain whether the gunman was still alive.
They found Wissman dead in an office area with an apparently self-inflicted gunshot wound to the head and a shotgun under his body.
Wissman had apparently just been dismissed before he left the factory, Capt Dijkstra said.
AP