jeff cherico is there live tonight. >> we kicked down a window. opened a door. >>reporter: when they saw smoke pouring from a home they jumped into action. >> were screaming and trying to get them to let us know where they were. >> one lady fell down the steps and we could not get to her. >>reporter: because of the thick smoke, they had to wait for emergency crews who rescued a woman from the first floor and a man from the second. >> pulled a guy out and tried to do cpr on the roof but it wouldn't work. they brought him down to the ambulance. we have a report that two of them were critically injured and three were taken for smoke inha inha inha inhale -- inhalation. >> i was just hoping she wasn't in the house but if she was, my prayers are with them. >>reporter: investigateders looked for clues as to the cause of the fire. >> we tried our best but it's hard knowing we couldn't get to her in time. >>reporter: three others who walked out of that burning home were treated and released. it's not clear what started the flames but sources say it's not suspicious. fir

jeff cherico is live at the scene with the heartbreaking story. >> reporter: such a tragedy. the accident happened a behalf block behind me. the driver stopped and is cooperating with authorities. the little boy and his mother were visiting for a weekly sunday dinner when the unthinkable happened. >> very vibrant. sweet little boy. >> reporter: family members remember ameen after the nearly 2-year-old was run down about 7:00 on the 4800 block of marion avenue. >> when i got outside, i saw my little cousin under the left back wheel. >> reporter: police say the toddler ran into the street just as the white suv was riding by. the driver got out. >> she started screaming. she started jump. she was really shaken. >> reporter: neighbor cassandra says this road is a popular shortcut for impatient motor irss, but children pay the price. surveillance video shows a 9-year-old getting hit by a car in 2012. the girl walked away, the driver took off. >> one child hit so badly, broke both his legs. flipped up in the air. constant. >> reporter: as police investigate this crash, officials sa