After a successful robbery, Alessandro Montemurno, 36, tipped his cab driver, or took a train home, the ANSA news agency reported.
Montemurno confessed to completing eight robberies over the past few days, police said.
"I'm homeless and I've been living the life of a drifter lately," Montemurno allegedly told police.
Police are continuing their investigation and may charge Montemurno with additional robberies, ANSA said.
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