Answer:
Less is more. Since this involved, at the start, a single check, it's likely these two suspects are involved in whatever they are doing together, rather than separately. Putting the whole enchilada in a single SAR gives law enforcement a more complete and concise view of what you believe may be happening. List both individuals as suspects, and tie the thing up in a pretty bow in your narrative, where you'll explain that it all started with that one check and that they came in together.
First published on BankersOnline.com 7/05/10