Pools Bottles and Death

Three books: Bottleneck, Mrs. Bellows, at the community center, is murdered. This leads to CD discovering a kiddie porn ring.[this was nominated for an award] Dead File, CD is looking through old files and finds a note that leads to international intrigue and massive fraud and murder. - Pool Party, a pistol in an old chest. the chest was from an old bawdy house. The owners were murdered five years ago, miles from that house. Was it the murder weapon? What does Len Stewart have to do with it?