President Barack Obama has phoned the Danish prime minister to offer his condolences after a gunman attacked a free-speech seminar and a synagogue in Copenhagen. The White House on Sunday said Obama spoke with Prime Minister Helle Thorning-Schmidt and offered the United States’ support. The White House says the pair agreed to work together to confront those who would challenge free speech or religion. In Copenhagen, a 22-year-old gunman killed two people and injured five others before being shot dead by police early Sunday. It was the country’s worst terror attack in three decades.