Oops - on ancestry, I discovered they were divorced:
in the Nevada, U.S., Divorce Index, 1968-2015
Detail Source
Name: Mark Makoto Evans
Record Type: Defendant
Divorce Date: 18 Jun 1996
Divorce Place: Churchill, Nevada, USA
Spouse: Nicola Lavon Evans
Control Certificate Number: 20760
Court Code: 3
County File Number: 23301
I also found on ancestry that he married again:
in the Nevada, U.S., Marriage Certificates, 2002-2015
Detail Source
Name: Mark Makoto Evans
Marriage Date: 29 Feb 2008
Marriage Place: Reno, Lyon, Nevada, USA
Recorded Date: 4 Mar 2008
Spouse: Pamela Anne Smith
File Number: 421703
There is also a public record that shows him as Mark Makoto Evans Sr with birth date of Jan 1971. This suggests that he has a son (and possibly also a grandson) with the same name.