Hmmm... most recent of the stories of his I've read was updated 1/2014... but admittedly I actually do not follow everything he makes.
It may be a mix of burnout, real life, and the fact the fandom he writes for is/has been dying/dead...
The burnout pattern fits has he had a great surge of story output mid 2013, little bits around 11/2013, one story extension 1/2014, and almost nothing after that I am aware of.
Ozzallos *has* done a disappearing act for years at a time at least one other time before though, so it is hard to say that he is dead without a lot of other evidence.
I *do* remember something along the lines of him expecting a kid.
A pity if he disappears, he had several stories I really have always wanted to see continued. Those included 'Not a Clue', 'The Bad Cut', 'A Time Apart', 'Hell is a Martial Artist', and 'Causality'.
Hopefully, this will not be determined to be another case like Brain Randall aka Durandall...