By Maria Caspani (Reuters) -Dallas police arrested a suspect in connection with last week’s shooting at a Koreatown hair salon that wounded three women of Asian descent, and federal authorities have opened a hate crime investigation, officials said on Tuesday. The suspect, who was not identified, was being interviewed and processed, the Dallas Police Department said on Twitter, adding that authorities will provide more information later on Tuesday. Local media, including the Dallas Morning News, identified the suspect as Jeremy Theron Smith and reported Smith had been admitted to mental health…