Jennylyn Mercado and Son Alex Jazz Now on the cover of Working Mom magazine in its July 2012 issue. Remember what Jennylyn Mercado had to go through just to keep Alex Jazz and raise him? Well, all is past now and Alex Jazz is recognized by his father Patrick Garcia as his biological son. Remember when Jennylyn Mercado wrote a letter to his unborn son, Alex Jazz? You can re-read what she wrote here. Now, Alex Jazz is all grown up at almost 4 years old. Jennylyn Mercado is now in a serious relationship with Luis Manzano. She will next be seen in the GMA soap, Hindi Ka Na Mag-iisa.