Christopher Farrel Millenio Kusuma, founder of data compression startup Kecilin, has been missing for five days.

His belongings were found at Pandan Payung Beach in Kretek, Bantul.

A mobile phone, wallet, black clothing, and eight letters, all wrapped in a white plastic bag, were discovered and handed over to the Kretek Police Station on Feb. 9.

Bantul Police confirmed the wallet contained Kusuma’s ID card.

Police spokesperson AKP I Nengah Jeffry Prana Widnyana said that the letters included messages of apology but did not disclose further details due to the ongoing investigation.