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Sinai mosque attack

The al-Rawda mosque in the town of Bir al-Abed was targeted during Friday prayers. It is the deadliest attack of its kind since an Islamist insurgency in the peninsula was stepped up in 2013. Egyptian President Abdul Fattah al-Sisi vowed to respond with "brute force".

The youngest convicted murderers in modern history

Robert Thompson and Jon Venables were only 10 years old when they became the youngest murderers in 250 years. Little James was led away by the depraved duo while his mother was in a butcher's shop at the busy shopping center. A picture taken from CCTV footage shows the tot being taken by the hand in what would become one of the defining images of the shocking case. The killers walked James for two and half miles and were spotted by 38 people – some of whom challenged the pair.

400 die of respiratory failure & heart attacks in NYC

The 1966 New York City smog was an air-pollution event, with damaging levels of carbon. Health officials advised people with respiratory or heart conditions to remain indoors. .An analysis could not account for damage during the smog that would remain latent and continue to cause disease and death for years.