Eight arrests have been made as the National Crime Agency says it has identified 270 people linked to the abuse websites.
The 19-year-old dual American-Estonian national has been extradited to the US, where he is facing federal charges.
A young woman's arrest after her fiance's death has dominated headlines and set off a flurry of speculation.
Timir Ahmed Mohamed is accused of attempted murder after five people were hit by a car in London.
Six criminal gang members who posed as police officers to prey on older people have been sentenced
In the early 2000s you were three times more likely to be assaulted in Scotland than in the US, but the country now ranks among some of the safest in the world.
Timir Ahmed Mohamed is accused of the attempted murder of five people in Ealing, west London.
Police said they found the body of a 17-year-old girl "stuffed" in a bag near railway tracks in the early hours of Saturday.
An Australian man has been charged with murder after the body of a 17-year-old girl was found in a suitcase in Thailand.