One man was killed and a woman and child suffered minor injuries in the home invasion and robbery of an upscale home in a remote area of Hilltown Township, Bucks County.
The robbers, both armed with handguns and considered armed and dangerous, remain at large, police said.
FBI and Bureau of Alcohol, Tobacco, Firearms and Explosives agents have joined the investigation.
Police described one of the intruders as an Asian man who was wearing cargo pants and a black jacket, and the other as a taller man, about 5-foot-9. The two spent several hours in the house, police said.
The the dead man as Joseph Canazaro, 48. They said that Canazaro and the woman lived in, but did not own, the house.