Police are looking for a man who robbed three separate lawn care workers at gunpoint in a 20-minute time span in Englewood Monday morning. In all attacks, the man demanded the workers' cell phones and wallets, most recently at 9:50 a.m. in the 5500 block of South Ashland Avenue, police said. The rob ber, wearing all black including a mask, then sped away in a car to the 5500 block of South Union Avenue where he robbed someone else at 9:47 a.m. and the first heist occurred about 9:30 a.m. in the 5900 block of South Parnell Avenue, police said. No injuries were reported. Anyone with information should contact Area 1 detectives, 312-747-8380. ...read more read less