evidence: In a statement, the Obamas called 45-year-old Tafari Campbell a "part of our family" and a talented chef who was creative and passionate about food. [...] Campbell and his wife shared two twin boys, Xavier and Savin. It is unclear how old the boys are or whether they were with Campbell on Martha’s Vineyard when he died. [...] "Today we join everyone who knew and loved Tafari – especially his wife Sherise and their twin boys, Xavier and Savin – in grieving the loss of a truly wonderful man," they said.