MEMPHIS, Tenn.—Police scoured the city of Memphis, Tennessee, on Thursday as they searched for suspects in the killing of influential rapper Young Dolph at a popular local cookie shop, a shooting that drew shocked and mournful reactions from the music world and throughout his hometown. Few details have emerged about the shooting of the 36-year-old rapper Wednesday at Makeda’s Cookie’s, a well-known bakery not far from Memphis’ airport. Police have not released suspect information or a possible motive of the shooting of Young Dolph, who was inside the store when he was gunned down. A throng of the fiercely independent rapper’s supporters descended on the cookie shop after the shooting, and the business was boarded up late Wednesday. Police asked the public to remain calm and local leaders called for a curfew Wednesday night in fears of retaliatory violence. No curfew was issued. At a news conference Wednesday evening, Memphis …