A press conference has been scheduled by Chicago police at 11:30 Sunday morning to outline the charges, and both men will appear in bond court following the press conference, police announced Saturday. The 26-year-old hair stylist's body was found July 27.
Authorities said the attack was so violent the blade of the knife they believe was used was broken.
The findings of a post-mortem were released earlier on Friday, and showed that Mr Cornell-Duranleau had methamphetamine in his system when he was killed. The Michigan native had been living in Chicago. But a Chicago police spokesman said Lathem had some sort of relationship with Cornell-Duranleau. He arrived in the U.S. three days before the killing, after being reported missing in Great Britain.
Chicago police said Lathem and Warren arrived in the city between 10 p.m. and 12 a.m.in the custody of the Chicago Police Department.
Won't play this weekend
Mariota is looking to develop more chemistry with his receivers, but he won't have Eric Decker on the field. In the video below, Henry uses the stiff-arm on a 17-yard touchdown against Carolina's first-team defense.
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.
At another point after the killing, Lathem sent a video to friends and relatives apologizing for his involvement in the crime, which he called the "biggest mistake of my life".
Lathem and Warren allegedly traveled to Lake Geneva, Wisc., after the murder and made a $1,000 donation to the Lake Geneva Public Library in the victim's name after committing the murder, according to Guglielmi.