was he gay?

When I heard about the shooting in Orlando, my first thoughts went out to the victims.  This is such a horrific tragedy and I pray that everyone involved gets the peace they are seeking.  I had a discussion with my son about it and the fact the the shooter visited the nightclub several times.  Witnesses say that he would sit in the corner, drink, and sometimes get loud.  Another person claims that he would try to find a date and/or dance with other men.  

I initially thought that the shooter was conflicted about his own sexuality and wasn't actually angry with the people at the nightclub but perhaps angry with himself.  Now the FBI may be investigating if the shooter indeed had trolled gay sites on the internet looking for a date and had gone to the club to find men.  Orlando tragedy