Neither victim in a convoluted elder abuse case knew the other one, Medford police say, but property and court records show that the two seniors Karin Franziska Boldt allegedly tried to kill had been roped into convoluted real estate dealings with her.Boldt, 55, has been arraigned on 30 felony charges that include attempted murder for accelerating two Medford seniors’ medical declines in March 2017, along with aggravated theft counts over financial and real estate dealings well into the six figures since at least 2013, according to court records. In earlier reports, Medford police said she defrauded them of more than half a million dollars.Medford police Lt. Justin Ivens said Boldt attempted to cause the deaths of two seniors by over-medicating them.“That’s one of the key factors that led to a decline in their health,” Ivens said.Boldt is accused of attempting to murder an elderly man March 10, 2017, and attempting to murder an elderly woman nine days later, March 19, according to an indictment filed Monday. The two victims were strangers to each other, according to Ivens.“These two elderly people did not know one another,” Ivens said.The yearlong investigation that led to Boldt’s arrest Friday was intricate and complex, according to Ivens. The U.S. Department of Justice assisted Medford police with “forensic accounting” and other financial sleuthing.“There was so much more to the investigation,” Ivens said. “I’ve seen the reports; it’s a monster.”Boldt is accused of adding her name to the deed of the elderly woman’s condominium, selling it in February 2017, then using the proceeds to buy property in Medford and Klamath Falls, court records and property records show.