A family of five from the New York City suburb of Scarsdale was aboard a plane that crashed minutes after takeoff from a popular beach resort in Costa Rica on Sunday, killing all 12 people aboard, a relative and the family’s rabbi said. Ten U.S. citizens and two Costa Rican pilots were killed when the Cessna 208B Grand Caravan aircraft crashed into a mountainous area off the beach town of Punta Islita, the Costa Rican government said. The town is in the province of Guanacaste, about 230 km (140 miles) west of the capital of San Jose. The dead included the Steinberg family, consisting of a couple and their three sons. “We are in utter shock and disbelief right now,” Tamara Steinberg Jacobsen, the sister of the father, Bruce Steinberg, said on Facebook, where she posted pictures of the family and thanked people for their condolences. She also asked for …