RANCHO CUCAMONGA, Calif. (KABC) — The family of a missing 74-year-old Rancho Cucamonga man is desperate for answers after he mysteriously vanished. Deputies believe he may have been kidnapped, and now, the family is offering a $250,000 reward for his safe return.

Loved ones believe his kidnapping could be tied to the family’s success in the cryptocurrency business.

“I miss him a lot,” said Wen Hou about his father, Naiping Hou. “He’s sort of a guide to my life.”

Wen Hou, who made a fortune in cryptocurrency, even donating $1.1 million to the USC Keck School of Medicine to research heart disease, said he believes someone has stolen his father’s identity and plundered his bank accounts for more than $1 million.