SAN FRANCISCO – Lawyers for two couples challenging California's ban on same-sex marriage plan to wrap up their case Friday following the incendiary testimony of a proponent who said he thinks gays are more likely to be pedophiles and that allowing them to wed would lead to the legalization of polygamy and incest. Hak-Shing William Tam of San Francisco spent five hours testifying Thursday as a hostile plaintiffs' witness to prove that bias toward gays fueled the 2008 campaign to pass the voter-approved measure, known as Proposition 8. Tam, who was one of five people who signed on as official...