Natalia, Texas - The suspect in multiple shootings that killed at least eight people in a Chicago suburb "took his own life" after a confrontation with police in Texas, according to authorities.

Police had launched a manhunt for 23-year-old Romeo Nance after eight victims were discovered at three different locations in Joliet, Illinois.

The first body was found on Sunday afternoon, leading police to identify Nance as a suspect. Investigations then led cops to the 2200 block of West Acres Road, where they stumbled across a horrific scene.

A further six people had been shot dead, including five at Nance's address, in what Joliet PD Bill Evans described as "the worst crime scene" he'd ever seen in his career.

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Nance had made his getaway in a red Toyota Camry, but US Marshals on Monday evening caught up with him near the city of Natalia, Texas – over 1,000 miles from Joliet.

"At approximately 8:30 PM" on Monday evening, "it is believed that Nance took his own life with a handgun following a confrontation with Texas law enforcement officials," Joliet PD announced on Facebook.

The suspect was also believed to have been involved in a non-fatal shooting on Sunday.

Authorities are still working on identifying all the victims and the manner of their death.