The suspects Wyndam Lathem and Brit Andrew Warren [right], remain on the run, but likely haven’t left the U.S.

The two men suspected of fatally stabbing a man in Chicago made a donation to a Wisconsin library in his name hours after they’re believed to have killed him, according to a new report.
Acting on an anonymous call, police found Cornell-Duranleau stabbed to death in an apartment belonging to Lathem, who apparently disappeared with Warren. Both Lathem and Warren were caught on surveillance video at the building, police said.
The gruesome attack has set off an intense nationwide search for the fugitives and drawn international interest.
Wyndham Lathem, 42, and Andrew Warren, 56, remain at large for the July 27 killing of 26-year-old Trenton Cornell-Duranleau.
The U.S. Marshals Service has joined the hunt for the men, who are considered armed and dangerous.
Late Thursday, chief Chicago police spokesman Anthony Guglielmi said police have an idea where the two may have fled and don’t believe they have left the country. The U.S. State Department has flagged their passports and travel documents, and the U.S. Marshals Service has joined the manhunt.
“Our search efforts have intensified,” he told the newspaper. “At this point, they can turn themselves in to any police department in the U.S. or their attorneys can contact (Chicago police). We are stressing that we want a peaceful and safe surrender.”
Lathem and Warren made a $1,000 donation to a library in Lake Geneva, Wis., just hours after they’re suspected of stabbing Cornell-Duranleau multiple times in the back.
Police told local media they aren’t sure why Lathem and Warren would’ve made the donation in the name of Cornell-Duranleau, who came from eastern Michigan.
Lake Geneva’s library referred all questions to the police in the southern Wisconsin town, who didn’t immediately return a call for comment.
Cornell-Duranleau was found in an apartment of a high-rise in Chicago’s North River section with multiple stab wounds on July 27.
His murder was so gruesome that blade was broken on the knife police believe killed him.

Police believe the suspects made a $1,000 donation in Cornell-Duranleau’s [photo] name hours after they had viciously murdered him.

Police are still trying to piece together what motivated Lathem and Warren, who came to the U.S. in late July from England, would have killed the victim.
Wyndham Lathem, 42, is known as a well-published researcher of infectious diseases at Northwestern University. An extremely private man, he nevertheless had a busy public life as an esteemed academic, invited to speak at conferences across the country. He was allegedly, in some type of relationship with Cornell-Duranleau, a hairdresser, Guglielmi told the Tribune.
They had “some type of falling out,” but declined to specify what the extent of their relation or how either might’ve known Warren.
Before he came to Chicago for a visit last week, Warren worked in the pensions and payroll department at University of Oxford’s Somerville College in England.
He lived with his sister and his boyfriend, and was struggling with the death of his father several months ago, the Chicago Tribune reported.
Lathem has been with Northwestern since 2007, and is revered by his colleagues as an exceptional microbiology researcher.
It’s unclear where Cornell-Duranleau was working at the time of his death.
He’d moved to the Windy City from Grand Rapids, Mich., some time after receiving his cosmetology license.
“Our Family is deeply saddened by the death of our son,” his mother, Charlotte Cornell, said in a statement to the Associated Press. “It is our hope that the person or persons responsible for his death are brought to justice.”