The two suspects fled on a cross-country odyssey and surrendered to authorities in California on August 4.
Wyndham Lathem, a Northwestern University microbiologist accused of stabbing a man to death, and Andrew Warren, an acquaintance from Oxford University, have been charged with first degree murder in connection with a brutal stabbing in Chicago last month.
Lathem's attorney, Adam Sheppard, told the Chicago Sun-Times that the former professor was expected back in Chicago Friday night.
Lathem had been held in a California jail since turning himself in on August 4 in Oakland, which ended a weeklong manhunt that followed the July 27 stabbing of Cornell-Duranleau in Lathem's North State Street Apartment. They could appear in court as early as Sunday.
Lathem was an associate professor of microbiology and immunology at Northwestern, while Warren is an employee of Somerville College, in the Oxford system, in Great Britain.
Police believe the July 27 killing took place about 5 a.m., but authorities didn't learn of the stabbing until an anonymous caller reached the front desk of the apartment building about 8:30 p.m. that day.
Officers found a "very gruesome" crime scene inside, and the victim was "savagely murdered", Chicago Police Department spokesperson Anthony Guglielmi has said.
Investigators say Lathem had a personal relationship with Mr Cornell-Duranleau. Lathem was taken into custody by U.S. Marshals in Oakland, Calif., on August 4.