Age of consent int he UK is 16, however:
“The age of consent in England and Wales is 16, as specified by the Sexual Offences Act 2003 (section 9). However, if a person (A) over the age of 18 in a position of trust over a person (B) under the age of 18, it is illegal for A to engage in sexual activity with B. (section 16)”
Someone over 18 in a Position of Trust over someone who was 16.
GUILTY
It happened in Colorado, not the UK. Just reported in a UK paper. A little confusing, I know.
Its a symptom of something very, very wrong.