A gunman was seen running away from a Portage Park smoke shop after fatally shooting a man inside the business Thursday night. Jefferson Park District officers on a traffic stop were flagged down by a witness who saw a suspicious person wearing a mask inside the smoke shop at 5612 W. Irving Park Rd. about 9:35 p.m., according to a Chicago police report obtained by the Sun-Times. Inside they found Mohammad A. Abuhashish, 34, unresponsive and suffering from a gunshot wound to the throat. Abuhashish was taken to Advocate Lutheran General Hospital in Park Ridge where he was pronounced dead at 10: 26 p.m., according to the Cook County medical examiner's office and police. A Friday autopsy determined Abuhashish died of a gunshot wound to the neck and his death was ruled a homicide, the medical examiner's office said.A witness saw a male gunman running moments after shots were fired, officials said. No arrests have been made and police were searching for additional witnesses and video evidence. Area 5 detectives were investigating. ...read more read less