The Coffin Dancer is a 1998 novel by Jeffery Deaver. Book #2 in the series featuring Lincoln Rhyme, a quadriplegic detective.
Rhyme is brilliant. But gets outwitted by a killer hired to do away with 3 witnesses in the last hours before their grand jury testimony.
It’s personal for Rhyme as the same man had killed two of his assistants 5 years before.
If you like surprise plot twists, this book is for you.