Thomas Westbrook is an atheist blogger, YouTuber, and founder of Holy Koolaid LLC - an information resource site for atheists. He came out of the woodwork at a debate between David Smalley of the Dogma Debate Podcast and Pastor Matt Slick by asking Slick the same question word for word that made the pastor's own daughter an atheist, and then creating a video response to Pastor Slick's reaction.
Thomas went on to create a weekly show called Sapient Saturdays in which he would take common questions about atheism, science, and philosophy (like "is the universe fine-tuned for life?") and break them down in a rational, research-oriented way.
Thomas was raised in a Muslim country by missionary parents but became an atheist after college when he found that the Biblical account of creation didn't match up with the scientific data, saying:
"I’ve always tried to stay open-minded, because I would rather follow the truth than warp the evidence to fit my preconceived notions."