There is much I could add about the priest involved. I could provide links, but don't wish to take the time to retrieve all the information. It may also be an act of chrisitna charity to bypass the opportunity.   I read Guarnizo's statement when he originally gave it.  If you wish to believe in his sincerity, then feel free to do so. The incident occurred at a local parish and there was a lot of coverage at the time.

Ms. Johnson is not alone in being Buddhist and Christian/Catholic. Many christians are buddhists, as are many Jews and others.  Buddhism is not a religion in the classic sense - there is no god, no creator. But, there is a religious dimension.  There is a good introduction to the subject here - 

http://www.pbs.org/thebuddha/blog/2010/may/6/buddhism-religion-gary-gach/

One notable Catholic Buddhist is Robert Kennedy, SJ - a priest in good standing,  and not only a Buddhist,  but a roshi (master).   Fr. Kennedy receives communion. He also consecrates the eucharist.