Baltimore -- A US jury today ordered an anti-gay Kansas church to pay $US10.9 million ($A11.7 million) in damages to relatives of a US Marine who died in Iraq after church members cheered his death at his funeral.
Church members said Lance Corporal Matthew Snyder's death was God's punishment of America for tolerating homosexuality. They attended his 2006 funeral in Maryland with signs saying "You're going to hell" and "God hates you".
The federal jury determined the Westboro Baptist Church, based in Topeka, and three of its principals invaded the privacy of the dead man's family and inflicted emotional distress.
Albert Snyder, the Marine's father, testified that his son was not gay, but the church targeted the military as a symbol of America's tolerance of gays.
Matthew Snyder died in combat in Iraq in March 2006.
The jury awarded Snyder's family $US2.9 million ($A3.11 million) in compensatory damages plus $US8 million ($A8.59 million) in punitive damages in the first civil suit against the church, which has demonstrated at 300 military funerals over the past two years.
The lawsuit said church websites vilified US soldiers, accusing them of being indoctrinated by "fag propaganda".
"I hope it's enough to deter them from doing this to other families. It was not about the money. It was about getting them to stop," said Snyder, of York, Pennsylvania.
The church, which is unaffiliated with any major denomination, is headed by the Rev Fred Phelps, who has led a campaign against homosexuality for years.
Most of the estimated 70 members of the church belong to his extended family.
"It will take the 4th Circuit Court of Appeals a few minutes to reverse this silly thing," Phelps said.
His daughter and co-defendant, Shirley Phelps-Roper, vowed to continue protesting at military funerals and called the court's decision a blow against free speech.
Outside court today, Phelps and his children waved placards with slogans such as "Pray for more dead kids" and "God hates fag enablers," while passing drivers and pedestrians shouted abuse at them.
Defence lawyer Jonathan Katz urged jurors not to award punitive damages because the $US2.9 million ($A3.11 million) in compensatory damages was already three times the defendants' net worth.
"It's enough already to bankrupt them and financially destroy them," Katz said.
Craig Trebilcock, a lawyer for Snyder, said jurors should award sufficient punitive damages to deter Westboro from repeating its actions.