BillD:
That poor kid... being shot even cost him a year off his age - or added a year. He was 10 in the headline and 9 in the story.

Even those educated at top schools (Gordonstoun?) can get it wrong.
In a much quoted speech on his mother's 90th birthday recently Prince Charles said; "Your Majesty, Mummy, I find it so very hard to believe you've reached your 90th year". Of course, on the occasion of her 90th birthday she reached her 91st year. Maybe maths isn't the prince's strong point.