Ten Things You Need to Know Today: Monday 22 Oct 2012

David Cameron has intervened in the row over why Newsnight spiked an investigation into child abuse allegations against Jimmy Savile, accusing the BBC of “effectively changing its story”. The Prime Minister was speaking after the BBC announced Newsnight editor Peter Rippon would “step aside” for the duration of an inquiry and issued corrections to a statement he had written regarding his reasons for dropping the investigation.

A 31-year-old man has been remanded in custody after appearing in court charged with the murder of Karina Menzies, the mother of three who was hit by a van in Cardiff on Friday afternoon. Matthew Tvrdon was also charged with 13 counts of attempted murder in relation to other pedestrians hit. He will appear before Newport Crown Court on Tuesday.

Three men have gone on trial in London accused of plotting a series of bomb blasts using rucksacks that could have been even worse than the 7/7 attacks. Irfan Naseer, 31, Irfan Khalid and Ashik Ali, both 27, are accused of being part of a Birmingham-based terror cell that planned bombings in 2011. They deny engaging in conduct in preparation of terrorist acts.

Three people died yesterday when a man launched a shooting spree at the Azana beauty spa in Brookfield, near Milwaukee in Wisconsin. The shooter, identified as Radcliffe Haughton, 45, killed himself at the scene. His wife, who had taken out a restraining order against him, was among the victims. It was the second mass shooting in Wisconsin this year.

A Native American, Kateri Tekakwitha, known as Lily of the Mowhawks, was among six new saints named yesterday by Pope Benedict XVI at the start of a drive for new devotees around the world. Kateri, converted by missionaries in the 17th century, was credited with a "miracle" in which she saved a child from flesh-eating bacterium. She died aged 24.