Topeka, Kansas-based Westboro Baptist Church says gay allies should be put to death.

ABC's Nightline on Wednesday aired a revealing profile of the group.

Correspondent Nick Watt traveled to Topeka, spending time mostly with Steve Drain, the former documentary filmmaker who decided to join the church in the course of filming a documentary.

When Watt confronts Drain about the group's main message – that gay sex is a sin – Drain defends his position.

“You guys say it in quite a mean way,” Watt tells Drain while seated on a leather couch.

“No, we don't,” Drain answers. “It would be mean if I gave an unscriptural answer.”

“'God hates fags,' that's not scriptural,” Watt says.

“Of course it is,” Drain insists. “Every stinking one of you is wrong about morality, because you pull morality from your black heart. I use the Bible.”

In another segment, Jael Phelps, one of church leader Fred Phelp's grandchildren, tells Watt that gay allies should be put to death.

“The government should institute the death penalty for these things,” Phelps says.

“So, you think the government of this country should put me to death for enabling homosexuality by thinking it's ok?” Watt asks.

“Yes,” Phelps says with a big grin. (The video is embedded on this page. Visit our video library for more videos.)