FAIRFIELD (CBS SF) – A swim coach at Fairfield High School has been charged with having sex with a 15-year-old girl on the team and will be arraigned next week in Solano County Superior Court.

Jonathan Mathis, 20, was arrested April 21 on suspicion of engaging in unlawful sexual intercourse with a minor, Fairfield police spokesman Officer Cleo Mayoral said.

Students at the high school told a teacher they were suspicious of Mathis’ relationship with the girl, Mayoral said.

The teacher contacted the Police Department’s school resource officer on campus, who then told police investigators, Mayoral said.

Mathis was arrested after he was interviewed that day at the school, and police searched his home and took his computer, Mayoral said.

Mathis was booked into Solano County Jail and posted $15,000 bail.

He will appear in court on May 12.

The alleged relationship with the girl, now 16, began when she was 15, Mayoral said. She has cooperated with the police investigation, he said.

Police are investigating whether there are other alleged victims, Mayoral said.

(Copyright 2011 by CBSSan Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services may have contributed to this report.)

Comments (25)
  1. TD says:

    He was 19, she was 15 when it happened. It sounds 100% consensual, so they need to let him go.

    1. Jay Mac says:

      Ummm… check the law my man. You cannot have sex with a 15 year old girl when you are 19! Whether you think it’s ok or not, it’s the law.

    2. TM says:

      i agree, if she was 17 and he was 21 i feel like they wouldnt make that big of a deal, i agree 100% with you

  2. tCToday says:

    19 and 15 isnt consentual you PERV!

    1. John says:

      It is consensual you idiot. Girls when I was 15 and girls of now are no damn different. They know what they’re doing.

      You must not be a Christian, because I can tell you most of the people in the good book had “underage” wives while they are old men.

      1. GD says:

        trust me, i was a 15/16 year old girl, we were not stupid. girls know what their getting themselves into dont baby them

  3. John says:

    Congrats d-bag! Now you are a registered sex offender for the rest of your life!
    @TD in this country 18 is the age of consent.

    1. FX says:

      Age of consent varies a bit from state to state: in California it is 18, in some (such as New York) it is 17, and in others still (Michigan and Ohio are two such states) it is only 16. In Maine, teenagers aged 14 and 15 may have sex with partners who are less than five years older. But almost all states have stricter guidelines concerning people who are in authority positions relative to the teenager in question: had this incident happened in Maine, while the ages in question would have indicated that the sex was consensual, the coach likely still would have violated the law because he was her coach.

      Just so you know…

    2. s says:

      Actually there is no age of consent in this country, it is a state by state thing. Some states the age of consent is as low as 16.

  4. V says:

    soooooooooooooooo, when a couple are dating, and the girl is 17, boyfriend turns 18, time to break up? in this case they are further apart in age, but just saying!!

    1. FX says:

      Many states make exceptions for teenagers who are close in age to one another, including those under the general age of consent. California is not such a state and it’s age of consent law is especially strict: it is even possible for two 17 year old who are having sex with one another to be charged with violating the age of consent law. For what it’s worth.

      1. Farmer Joetwo says:

        incorrect you can still be charged if you are 18 and your partner is not 18 or older.

  5. JC says:

    15 will get you 20

    1. Amber J says:

      seriously. hah.

  6. Brad says:

    There are tons of guys on the internet, who look much more older than 20, having sex with girls who look much younger than 15. What about them? A simple search will yield thousands and thousands.

  7. Nextset says:

    Sounds like Stat Rape, which is not sex registrable in CA. It can be reduced to a misdemeanor also.

    Which is probably why the bail is so low.

    He was too young to have been hired by the school and put around the jailbait. They should be hiring older and married staff.

    1. Mike says:

      Stat Rape is now called unlawful intercourse, and yes, violators will have to register 290.

  8. Jett07 says:

    I thought that was a younger Johannes Mehrserle when I first saw the photo. Oh, and 19 & 15 in consensual sex shouldn’t be charged or prosecuted. Most 15 year old girls are more emotionally mature than most 19 year old guys anymore.

  9. Tim Gervasoni says:

    @TD & @Jett07,
    The two of you are perverts. Shame on you.
    That man was employed by the school district and entrusted to be mature enough to keep his hands off a high school freshman. (She’s a 15 year old kid).

    I bet TD & Jett07 are registered offenders on Megan’s List.

    1. Brad says:

      If she’s a kid then so is he.

  10. jqp says:

    Stupid is as stupid does. And this guy looks r-e-a-l-l-y DUMB!

  11. obbop says:

    Ample females in their 20s, 30s and older have never advanced beyond a mental age of teenager.

  12. Areli says:

    The girl is stupid && the guy is a creep

  13. larry says:

    19 & 15 KUDOS to the coach, he did nothing wrong. I suppose if she was 18 (societies answer to human nature and instinct) and he was 68 and wealthy it would be o.k. and prolly featured on oprah. Blame the school for hiring such a desireable and compatible coach for the girls. Guess they were too stupid to see that coming LOL.

    1. Katy says:

      You are so right, i am with you

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