An early morning argument Saturday left a 19-year-old dead and a building on Ocean Parkway besieged with heavily armed police searching for the killer. Allen Tahiraj was shot on Ocean Parkway around 3:30am Saturday morning as he congregated with friends. One friend said, "There was a little argument and one of the kids pulled a gun." The argument was overheard as being about "territory" and may have been drug related. Tahiraj was allegedly trying to......