Conversation so far:
Did Chris Pérez have children?
In 2001 Chris Pérez married Venessa Villanueva and they had two children, a boy and a girl.
What happened with Chris Pérez in 1998?
John Garza introduced Chris Pérez to Venessa Villanueva, and after getting to know each other they became a couple in 1998.

Question: Who is John Garza?
Self-contained rewrite: Who is John Garza?