4 arrested in Russia poisoning scheme ORENBURG, Russia, April 28 (UPI) -- Four people suspected of poisoning people in order to seize their apartments were arrested in Orenburg, Russia, police said Saturday. Among those arrested are two former police officers and a real estate agent, RIA Novosti reported. Investigators were looking into the case of a mother and daughter found dead of poisoning in April shortly after they had sold their apartments. Nine other similar cases were also still under investigation. "This stage of the investigation includes ... the exhumation of 11 corpses, carrying out several complicated examinations, a number of which must be held in other regions of the country," said Angelika Linkova of the regional Investigative Committee.