Rex Heuermann confessed to killing eight women in a series of murders that started in the 1990s.
The suspect had a prior conviction for cocaine distribution and illegally reentered the United States two times, officials said.
The bipartisan bill noted that the Chinese regime has failed to give a transparent account and calls for a U.S. investigation.
The warning comes amid reports of sexual assault cases involving jet ski operators in The Bahamas.

The president said Netanyahu should be more ’responsible' and suggested Syria could deal with the Iran-backed terrorist group more effectively.
The test scores have not been considered in the university’s admissions process since 2021.
Four new promotions from Innova will benefit the troops in celebration of the nation’s 250th anniversary.
The block allows individuals to continue using single-user facilities of the opposite sex, and multi-user facilities when no single-user options are available.
Jay Clayton had been set to answer questions from senators.
Jackson received over 52 percent of the vote to Jones’ roughly 47 percent.
Regulators are considering whether to clear the first messenger ribonucleic acid vaccine against influenza.
The first Trump administration imposed tariffs on Chinese goods using Section 301 of the Trade Act over China’s unfair trade practices.
Negotiators plan to release full text of the agreement soon.
The base said in a statement that the crash was not survivable.
The announcement has been widely welcomed, but Israeli Security Minister Itamar Ben-Gvir said the deal does not bind his country.
The project is expected to offer ‘clean power’ to roughly 3 million Americans every year.
Trump held phone calls with both Putin and Zelenskyy on June 14.
Mixed martial arts takes center stage at the nation’s capital, with seven fights scheduled for the specially built octagon on the South Lawn.