FBI seeks victims of web predator

FBI officers are hoping to locate 240 more victims of a 31-year-old man convicted of using online threats to extort pornographic images from teenage girls.

Lucas Michael Chansler was sentenced to 105 years in November after he pleaded guilty to nine counts of producing child pornography.

Prosecutors say Chansler, formerly of St Johns, Florida, communicated with hundreds of teenage girls in 26 states, three Canadian provinces, and the UK.