A man was fatally shot in a Garfield Park neighborhood alley Tuesday morning. The victim, an unidentified man, was in the 3400 block of West Polk Street when an assailant opened fire and shot him multiple times, police and a fire department spokesperson said. He was taken to Advocate Illionois Masonic Medical Center, where he was pronounced dead, according to police. No arrests have been made. Area 4 detectives are investigating.