The Oxford University treasurer suspected of murdering a hairdresser in Chicago has been caught by police more than 2,000 miles from the crime scene after a US-wide manhunt.
A deputy US marshal said Lathem's surrender came after fast-paced negotiations through an attorney that led to the fugitive turning himself in at the federal courthouse in Oakland.
"Both individuals will be held accountable for their actions and we hope today's arrest brings some comfort for the victim's family".
Both men - taken into custody without incident - will appear before an Oakland court and are now awaiting extradition to IL, where they will be questioned by Chicago homicide detectives.
The Tribune also reported that one of the men wanted for the murder, shortly before the body was found, went to a library in Lake Geneva, Wis. and made a donation of $1,000 cash in the name of Cornell-Duranleau, asking that the donor remain anonymous.
It was around 8:30 in the evening on July 27, when Chicago police said they found they found Cornell-Duranleau's body with "several lacerations" after responding to a call requesting a well-being check. Warren was taken to the San Francisco County Jail.
He was reported to be on the run with Professor Wynsham Lathem, 42, from Northwestern University in IL.
Authorities had been searching for Lathem, 42, and Warren, 56, since discovering the body of Trenton Cornell Duranleau in Chicago on July 27, police said.
She declined to say whether she or other family members had ever heard of them before her son was killed because they "are at large and there's an ongoing investigation".
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Lathem had been a professor specialising in bacteria that cause disease at Northwestern University in the USA since 2007. Pictured left side, Chicago hairstylist, Trenton Cornell-Duranleau who the two educators are alleged to have murdered.
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The two were expected to appear in court and eventually be returned to Chicago. "We are also thankful that this did not end in further tragedy".
He sent family and friends a video in which he apologised, police said.
"I've never seen where suspects in a homicide would make a donation in the victim's name", said Lt. Edward Gritzner.
WGN-TV reported that neighbors said Lathem and Cornell-Duranleau were in a relationship.
A hairstylist fondly recalled Cornell-Duranleau.
United Kingdom police have confirmed Mr Warren was reported missing on July 25 having left the United Kingdom the day before.
Lathem and Warren are awaiting extradition to IL.
Police say Lathem knew Cornell-Duranleau, who moved to Chicago from MI after receiving his cosmetology license, reports the AP.