This is from TMZ, so choose what size of grain of salt you choose to go with it. However, keep in mind that TMZ is the place that first broke word of the FBI's involvement in this case. Anyway:
According to sources connected to the probe ... FBI agents looking into the Newton recruiting controversy are also asking about Milton McGregor -- a dog track owner arrested last month for allegedly bribing Alabama politicians to vote pro gambling.
We're told agents asked someone connected to the Newton case if he was familiar with McGregor or the bribery scandal.
Let's get this out of the way: this is not a smoking gun. Period.
The FBI is asking about McGregor. The Bureau may be asking to shed light on the Newton case. Or, it could be asking to shed more light on the existing probe into McGregor. This report simply doesn't contain enough information to know one way or another.
It's an interesting detail, but there really aren't too many conclusions you can draw from it.