Summarize John Berry's meeting with Roman Jones.

Roman Jones, a member of the band "The Zephyrs," is uncooperative around John whom he accuses of being a cop. When John says he wants to buy drugs from him, Roman wants to know who sent him. When John names Angela Harding, Roman starts accusing him again of being a police officer. When John says it was not Angela but a friend of hers, Karen, who sent him, Roman denies knowing her and refuses to say anything more.