9. The Dancing Usher Guy uses a compound derived from jimsonweed to make him jittery and because it is illegal, he must carry a whizzinator with him through the airports of major American cities to beat any random drug tests he may be given.

9. The Dancing Usher Guy uses a compound derived from jimsonweed to make him jittery, and because it is illegal, he must carry a Whizzinator with him through the airports of major American cities to beat any random drug tests he may be given.

1) The "and" here is the conjunction between "The Dancing Usher Guy uses a compound derived from jimsonweed to make him jittery" and "because it is illegal, he must carry a whizzinator . . .". Therefore, when it separates two independent clauses, a comma must be placed before the "and."

2) Whizzinator is a trade name. Therefore, it gets capitalized.