Two middle-aged men, one a university professor from Chicago and the other a university employee from England, appear to have taken a long road trip to the Bay Area after they were both suspected in the stabbing death of a younger man in Chicago.

The body of 26-year-old Trenton James Cornell-Duranleau was found stabbed multiple times on July 27 in the apartment of one of the men, 42-year-old Wyndham Lathem, an associate professor of microbiology and immunology at Northwestern University Medical School. As the Associated Press reports, surveillance footage at the building in Chicago's River North neighborhood shows Lathem leaving the building the day of the murder with another man, 56-year-old Andrew Warren, an employee of Somerville College at the University of Oxford who had just arrived in the U.S. three days before the stabbing. The two then drove 80 miles that same day and according to authorities they stopped in Lake Geneva, Wisconsin where one of them, likely Lathem, made a $1,000 cash donation in Cornell-Duranleau's name to the public library there.

Cornell-Duranleau's body was found after an anonymous call came in to the front desk of the building where Lathem lived, saying that a crime had been committed in his apartment. Police found the body at 8:30 p.m. on July 27, and concluded it had already been there for 12 to 15 hours. NBC Bay Area reports via Chicago police spokesman Anthony Guglielmi that the scene was "gruesome and the victim was savagely murdered." Per the AP, the stabbing was violent enough that the knife broke.

Authorities say that Lathem had a personal relationship with Cornell-Duranleau, who had moved to Chicago from Michigan to attend cosmetology school — Chicagoist earlier reported that Lathem and Cornell-Duranleau had "some type of falling out." It's so far unclear how Lathem knew Warren or why he had come to the U.S. The pair did not turn themselves in together, but had come to the Bay Area to seek refuge with friends and colleagues here. It's also unclear what they did over the course of the last week, but as the AP reports, Lathem sent a video to family and friends apparently admitting to the stabbing and calling it "the biggest mistake of my life." There was then concern that Lathem may try to take his own life, and he is currently "under intensive observation" at Santa Rita Jail in Dublin, according to Sgt. Ray Kelly with the Alameda County Sheriff’s Office, speaking to the SF Chronicle.

Frank Conroy, a supervising deputy with the U.S. Marshals Service who helped arrange Lathem's safe surrender, tells the Chronicle, "These guys ... have had no criminal history. People panic when they were in a situation like they were in, and they reach out to people they might not have reached out to in years, just to try to hide."

Lathem turned himself in around 7 p.m. Friday outside the Alameda County Courthouse in Oakland, and was booked into Santa Rita on felony fugitive charges at 11:40 p.m. Warren turned himself in around the same time at Park Station in San Francisco. Both are expected to appear in court on Monday morning, and they are likely going to be extradited back to Chicago in the coming days to face the investigation there.

The Chronicle spoke to a representative from Somerville College to confirm that Warren was not in Chicago on university business, and they said they were not aware of the case until they were contacted, calling it "upsetting news."

The Chicago Tribune reported last week that this was Warren's first trip to the U.S., one that he took without even telling his boyfriend or his sister. He was reportedly depressed and still grieving following the death of his father eight months ago.