ROME — A homeless man was charged with murder Tuesday in connection with the death of U.S. college student Beau Solomon, who vanished just hours after arriving in the Italian capital last week.

Image: Beau Solomon

Image: Beau Solomon

The 19-year-old sophomore was due to study at John Cabot University, a small Rome-based liberal arts college.

Solomon’s body was found in the Tiber River on Monday.

The visiting student from the University of Wisconsin-Madison as last seen around 1 a.m. on Friday (7 p.m. ET Thursday) while at a pub in Rome. He had arrived in the city only hours earlier.

His roommate became “worried when he did not see Beau at orientation” later in the day, John Cabot University said in a statement issued Sunday.

Investigators identified the accused as Massimo Galioto, a 40-year-old homeless man. He was being charged with “aggravated murder,” a police spokesman told NBC News.

After the disappearance, Solomon’s parents called their son’s credit card company and “realized thousands of dollars had been charged” in Milan to his account, according to his brother Jake Solomon. Milan is about 350 miles north of Rome.

On Monday, another brother had told the Milwaukee Journal Sentinel that the teen’s body had been found with a head wound and blood on his shirt.

“It’s a murder investigation,” Cole Solomon told the newspaper before the arrest was made.

The personal finance major had been due to participate in a study abroad program.

“We express our most heartfelt condolences to the Solomon family and to all those who loved Beau,” John Cabot University said in a statement.