Two women were killed and three young boys were left in critical condition Thursday morning when multiple shooters opened fire into a Greater Grand Crossing neighborhood home on the South Side, according to Chicago police.About 6:15 a.m., officers responding to a ShotSpotter gunshot detection alert as well as 911 calls found the women, ages 42 and 22, along with the children — ranging in age from 5 to 8 — all wounded inside the home in the 7100 block of South Woodlawn, according to CPD Deputy Chief Don Jerome.The officers provided first aid but the older woman died at the scene, Jerome said during a press conference near the scene. The younger woman died at the University of Chicago Medical Center.The boys were taken to Comer Children's Hospital in critical condition. Police said they were 5, 7 and 8, but a relative said one of the boys is 6. That family member told the Sun-Times he was inside the home at the time of the shooting, identifying his mother, brother and cousins among the victims.“I heard popping noises and came out my room and saw my 6-year-old brother with gunshot wounds to his body,” said the relative, who declined to share his name.“I come out to the front room and [my cousin is] laying down and not even responding,” he said. “My mom was face down, and my little brother was in my momma’s room fighting for his life.” Residents gather Thursday morning in the 7100 block of South Woodlawn, where five people were shot, including three young children. Mohammad Samra/Sun-Times A preliminary investigation suggested two vehicles pulled up to the home, multiple shooters got out and they fired shots at the home, Jerome said, adding it might have stemmed from a personal dispute.Shell casings from a rifle and handgun were recovered at the scene, Jerome said. Investigators were reviewing video surveillance video and running possible license plate numbers of vehicles seen speeding from the scene.No one was in custody as of Saturday afternoon. Hours after the mass shooting, officers investigated as family members, violence prevention workers and neighbors gathered on the block."Personal conflict and guns make a bad combination," Ald. Desmon Yancy (5th) said. "My heart bleeds for this community, which is a relatively quiet community and isn't really used to this sort of violence."Police asked anyone with information to submit tips anonymously at CPDtip.com.The shooting capped a brutal start to the July Fourth holiday weekend that saw at least five other people wounded in separate attacks across the city. Related Mayor Johnson announces $10M expansion of fund for victims of gun violence and their grieving families