General jihadist propaganda on the Internet may have inspired Mohammod Youssuf Abdulazeez, the man accused of killing five servicemen in Tennessee on Thursday before being shot dead himself, a source close to the investigation said on Monday.
The source, who asked for anonymity when discussing sensitive information, told Reuters that authorities had not established a direct link between Abdulazeez and specific groups such as Islamic State.
The attack is being investigated as an act of terrorism.
General jihadist propaganda? The Quran?