Abhishek Sudhesh Bhat had moved to San Bernandino in California State University around 2 years ago.
A US national has been arrested in San Bernardino after he surrendered in the recent killing of an Indian man, Abhishek Sudhesh Bhat, the police said on Sunday.
Eric Turner, 42, turned himself in on Saturday, the San Bernardino Police Department said.
Abhishek Sudhesh, 25, was shot dead outside a motel where he worked part-time.
A resident of Mysuru, Abhishek was studying for a Master's Degree in computer science at California State University San Bernardino.
He was allegedly shot by Eric Turner outside the motel on Thursday afternoon. He was declared dead on the spot by the police.
The San Bernardino Police Department said it is investigating why Eric Turner shot Sudesh.
"The suspect was identified and turned himself in to authorities on the morning of Saturday. The motive for the shooting is under investigation," San Bernardino police Sergeant Albert Tello said in a statement.
Eric Turner is being held without bail and is will be produced before a local court on Tuesday.
The friends and family of Abhishek Sudesh have set up a GoFundMe page.
Till Sunday more than 1,000 people had helped raised more than USD 39,000.
"The family grieves him deeply," the fundraising page said.
"He was attacked while he was looking after a motel in his free time on behalf of his friend. The family grieves for him deeply," it said.
"He had decided to go abroad to study with the only aim and ambition to help and be there for his family. He worked hard day and night to fulfill this dream. He wanted to fund his younger brother Abhishreshta's medical education fees apart from being financially available for everyone in his family," it said.