ISTANBUL Tensions are running high in the US after a 37-year-old man was shot and killed Saturday in the city of Minneapolis, Minnesota, the city’s second fatal shooting of a US citizen by federal agents this month. The killing of Alex Jeffrey Pretti, an intensive care nurse, further inflamed tensions, sparking street clashes between protesters and law enforcement. The incident followed the Jan. 7 fatal shooting of Renee Good, a 37-year-old mother, who was blamed by the Trump administration