Richard Liu, the Chinese billionaire who was accused of rape in August by a now-22-year-old student at the University of Minnesota, will not be charged by U.S. prosecutors due to a lack of evidence, Reuters reported early Saturday morning, China time.

The Hennepin County attorney’s office said that after a thorough investigation, it had determined the existing evidence was not substantial enough to warrant charges against Liu, the 45-year-old CEO of JD.com, one of China’s largest e-commerce companies. Details of the investigation were not released, as the attorney’s office said it did “not want to re-victimize the young woman.”

On Saturday morning, Liu wrote on microblogging platform Weibo that the outcome had proved he did not break the law — though he admitted that his behavior had “deeply harmed” his family.

Wil Florin, a lawyer for the alleged victim, told The New York Times that prosecutors had not met with or spoken to his client, and that he is considering bringing a civil suit against Liu.

Liu was arrested in Minnesota on Aug. 31 and released within a day. He returned to China, where he continued to run his company.

Editor: David Paulk.

(Header image: Richard Liu, the CEO and founder of Chinese e-commerce company JD.com, rides a delivery bike as he prepares to deliver goods to his company’s customers in Beijing, June 16, 2014. Jason Lee/VCG)