Her sister and mother said this week that she had been "found safe" in Mexico, and police previously said she chose to travel to Tijuana alone

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"This past month has been an unimaginable ordeal for our family," her sister and mom said of their search, during which time her dad also died by suicide

Investigators on her case spoke at length with PEOPLE about what they learned

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Police have been clear that they see no evidence of a crime in connection with her voluntary missing persons case

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"No tsunami danger exists for the U.S. west coast, British Columbia and Alaska," the National Tsunami Warning Center said

"Keep away from the coast until local officials say it is safe to return," officials warned

"Keep away from the coast until local officials say it is safe to return," officials warned

“This is a very, very odd situation, and they deserve answers,” an attorney for the Kobayashi family tells PEOPLE

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"None of this makes sense," an attorney for her family tells PEOPLE

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"We are deeply grateful for the urgency and dedication law enforcement has shown," they said