Is this massacre at a gay night club in Orlando, Florida a "lone wolf" attack or an act of Jihadist-inspired terrorism or yet another mass killing?

The second link refers to
Mateen's father Mir Seddique told NBC News that the incident had nothing to do with religion, but may have been triggered by the sight of a gay couple kissing in Miami.
I say another mass killing prompted by:
According to the Mass Shooting Tracker, the US last year suffered 372 mass shootings, defined as a single incident that kills or injures four or more people. Some 475 people were killed and 1,870 wounded.
I have only read two BBC reports:http://www.bbc.co.uk/news/world-us-canada-36511778 and http://www.bbc.co.uk/news/world-us-canada-36512308

That the target premises was a well known gay night club earlier today led to speculation that is what made the premises a Jihadist target.

IIRC in the UK we have had Jihadist, both "lone wolves" and organised groups, plot to attack night clubs - to achieve mass casualties. Notably the two VBIEDs left outside a London night club in 2007. There was a another VBIED left near the route of a Gay Pride March around the same time IIRC.