A married couple have been killed during a hostage-taking in Germany. Two 17-year-old men broke into the house of the 46 year-old man and his 41 year-old wife in Tessin near Boizenburg on Saturday night and stabbed them to death. According to the police in the eastern German state of Mecklenburg Vorpommern, the two 17-year-olds failed to notice the couple's 15 year-old son, who called the police.