Why is m. vicks case a federal case and not a local case?

The crimes were interstate. That makes it Federal.Why is m. vicks case a federal case and not a local case?
Gambling and crossing state lines? That's my guessWhy is m. vicks case a federal case and not a local case?
the state case has not gone away, he will be prosecuted under state criminal statute as well as the federal charge
in addition the states can still prosecute him under their statutes.
It was a federal investigation involving interstate travel.
becuase he was involved with dog fighting all over the country and not just in one spot so that makes it a federal case
Multiple jurisdictions makes it Federal