Why so shy BBC News?

This BBC report http://www.bbc.co.uk/news/world-us-canada-37399862 is staggering for the last line of this extract from it:

'At least eight people were wounded in a stabbing attack at a shopping mall in the US state of Minnesota, before the suspected attacker was shot dead by police, officials say.

The attack happened in St Cloud, 70 miles (110km) north-west of Minneapolis. The motive is unclear.

The suspected attacker reportedly made references to Allah before he was killed.'

Made references to Allah? Derogatory references? Or did he scream "Allahu Akbar" as have so many Islamist stabbers, hackers and cutters before him? Why so shy BBC?