SINGAPORE: In 2017, the heart of Singapore’s Central Business District was the scene of a killing that stunned lunchtime crowds — and later, split public opinion. Tan Nam Seng, a 69-year-old semi-retiree and founder of a successful shipping business, stabbed his 38-year-old son-in-law, Spencer Tuppani, three times in the chest at a Telok Ayer coffee […]