Most of the passengers onboard a Singapore Airlines flight that was hit by severe turbulence resulting in a passenger’s death arrived in Singapore on Wednesday from Bangkok, where the plane had made an emergency landing the previous day. A relief plane operated by the airline flew 131 passengers and 12 crew members to Singapore’s Changi Airport in the morning, the airline said in a statement. Dozens of people had also been injured when turbulence hit flight SQ321 en route to the city-state from London. Another 79 passengers and six crew members remained in Bangkok for medical care or to look a…