Complex sentence: Matt Dillahunty (born March 31,1969) is a public speaker, debater, and internet personality and was the president of the Atheist Community of Austin until May 2013.
Split into simpler sentences: Matt Dillahunty (born March 31,1969) is a public speaker, debater, and internet personality. He was the president of the Atheist Community of Austin until May 2013.