First time I heard this.
No wonder they've kept it under wraps.
First time I've heard it, too.
On February 21, somebody (according to the Twitter records posted, and allegedly Martin's cousin) sent him a tweet that said "Yu ain't tell me you swung on a bus driver."
To my knowledge, that's the only thing that's ever appeared about the bus driver and everything else is speculation and rumor. As far as I can source Martin's three suspensions, they were for the marijuana baggie and pipe, and two for vandalism (and one of those vandalism suspensions involved finding the jewelry and screwdriver while looking in his backpack for the tool used in the vandalism).
There may be substance to the charge that Martin assaulted a bus driver. There may be substance to the charge that he was suspended for it. I'd like to know. However, nobody seems to be able to point to anything except the tweet and "well, you know, I heard . . . "