In a world turned upside down by advancing cancer, Isaiah Branzuela took joy in three things: his home, his dog, and the love of friends and family. Now his home is gone, destroyed by this week’s devastating Loma fire. His beloved dog is gone, too, killed in the conflagration. What remains are his fiercely devoted friends, who are fundraising for the 43-year-old Branzuela and his family, to whom fate has dealt such a blow. And another. And then another. “We take care of each other,” said friend Jamie Rose Berry, who created a GoFundMe campaign for the stunned Branzuela family.