Where are the binder twins now?

According to The Washington Post article "The story of the surgery that made Ben Carson famous - and its complicated aftermath": "Patrick Binder died sometime in the past decade, Theresia's brother Peter Parlagi said. Benjamin is 28 now and still cannot speak, but according to Parlagi is doing "relatively well." He's grown up; his hair is now dark. His younger half-brother, Florian Vosseler, still checks in on him two or three times a year, often with their mother, who declined to be interviewed for this story. They'll take walks, feed him cake and help him drink coffee, which he prefers with extra milk."