Police: Gunman dead, 3 others killed at suburban Milwaukee salon October 21, 2012 -- Updated 2226 GMT (0626 HKT) NEW: The suspect -- who was found in the salon -- apparently killed himself, police say 3 others were killed in the shooting and 4 were transported to an area hospital An apparent homemade bomb was found at the shooting scene, a police chief said A Milwaukee hospital was placed on lockdown, which has since been lifted (CNN) -- The man accused of shooting seven people -- three of them fatally -- late Sunday morning inside a suburban Milwaukee salon has himself been found dead, Brookfield, Wisconsin, police Chief Daniel K. Tushaus said. The suspect -- Radcliffe Haughton, 45, of Brown Deer -- was found dead Sunday afternoon inside the Azana Salon and Spa, according to Tushaus. The chief said Haughton is not one of three fatalities that had been earlier reported. "It appears that he is deceased of a self-inflicted gunshot wound," the chief said. There is no other suspect that we are seeking. The four people wounded in the shooting, which took place near a mall in Brookfield, are being treated Froedtert Hospital in nearby Milwaukee. Hospital spokeswoman Beth Strohbusch had told CNN that none of the four victims who had arrived there were in critical condition. The shooting is being investigated as a possible domestic-related incident, Thomas Ahern, a spokesman for the Bureau of Alcohol, Tobacco, Firearms and Explosives said. Share your images, videos and stories Employees told authorities the man entered the salon with a handgun around 11 a.m. (noon ET), and opened fire when asked if he was going to rob the store, Ahern said. Police "believe we have identified what is being described as an improvised explosive device," in the salon, the chief said, adding that the device was hampering the investigation. The Froedtert hospital complex, which includes a medical school, was put on lockdown immediately after the shooting, according to the Froedtert website. But an online update, published at 4:25 p.m., indicated that the Milwaukee medical facility had "resumed normal operations." "We are certain that our environment is safe," the hospital said. President Barack Obama learned of the shooting around 12:30 p.m. from homeland security adviser John Brennan and then had a follow-up call an hour later involving, among others, FBI Director Bob Mueller, a White House statement said. "The president was informed that the shooting did not appear to be terrorism-related," the statement said. The spa is about half a mile from a Sheraton hotel where a gunman killed seven people and himself in March 2005. Terry Ratzmann, 44, burst into a service being held by a Living Church of God congregation and fired 22 rounds before shooting himself. Live blog: Instant updates on the shooting in Wisconsin CNN affiliate WTMJ reports CNN affiliate WISN reports