LOS ANGELES — A former California attorney has been arrested on suspicion of killing his ex-wife for financial gain in 2006 by strangling her and throwing her overboard while on a cruise along the Italian coast, authorities said.

Lonnie Kocontes, 55, a former Mission Viejo, Calif., resident, was arrested Friday at his home in Safety Harbor, Fla., in connection with the death of Micki Kanesaki, 52, of Ladera Ranch, Calif., authorities said. He is charged with one felony count of special circumstances for financial gain.

If convicted, he would face a maximum sentence of life in state prison without the possibility of parole and would be eligible for the death penalty, authorities said. Kocontes, who is being held without bail, faces extradition proceedings at a date to be determined.