He's not a "dropout" or whatever garbage you said. Mark left Channel 12 on his own some time ago. Yes, Mark was WPRI's morning anchor, before the station expanded their morning news to two hours.
As far as his WLNE appearance, Mark is just filling in. This past Saturday, he reported on the airplane evacuation at T.F. Green Airport at 6:00...then reported on the New Bedford gay bar attacker for 11:00 p.m. I would suggest that do not expect to see him co-anchoring with Elyce or anything like that in the forseeable future. As I said, he's just filling in. How do I know? Because I saw him out on both stories on Saturday and that's what he told me.