US: Authorities in Illinois remain on the hunt for a suspect who allegedly killed 8 people across three locations in the Chicago suburbs in the United States since Sunday.Shooter in Chicago kills 8Police in Joliet and Will County said the motive was still unclear, but the shooter knew the victims. The FBI joined local agencies in searching for the armed and dangerous man who is now on a manhunt.The victims were found Sunday and Monday at three separate sites, officials revealed Monday evening. One person was killed Sunday in Will County. Seven more bodies were discovered Monday at two homes in Joliet.Authorities believe another Joliet shooting that injured a man on Sunday is also connected but did not elaborate on the evidence.Worst crime so far: Joliet Police Chief“Ive been a policeman 29 years and this is probably the worst crime scene Ive ever been associated with,” said Joliet Police Chief William Evans, speaking outside the homes where seven victims were found.Will County deputies had staked out one residence overnight in case the suspect returned. After getting no response at one home, they checked the second house and made grim discoveries.Authorities said the victims found Monday were family members but did not clarify if they were related to the shooter. The suspect was familiar with all those killed, police confirmed.Some photos revealedEarlier Monday, the Will County Sheriffs Office shared images of a red Toyota Camry tied to shootings Sunday. Joliet Police also posted photos of the car and the suspect, warning he should be considered armed and dangerous.Autopsies are pending and police did not indicate how long the victims had been dead. But the tragic chain of violence that claimed 8 lives has rattled the Chicago suburb as authorities desperately hunt for the perpetrator.Residents have been advised to remain vigilant while the suspect remains at large. But investigators have released few details so far about the spate of deadly shootings rocking the community.