Nashville investigators say they believe the teenager who opened fire in a high school and killed a girl before killing himself was influenced by material found on "harmful" sites.

Mastercard and Visa failed to stop their payment networks from laundering proceeds from child sexual abuse material and sex ...

Rudakubana, 18, pleaded guilty on Monday to murdering three girls, 10 attempted murders, producing ricin, possessing terrorist material, and possessing a knife.