By Lawrence Schiller. Not sure what I can add to that expansive subtitle, except that the back cover says Schiller "recreates every aspect of the complex case of the death of JonBenét Ramsey."
This paperback seems to have sat in storage for a while, there's some foxing to the page edges and the spine's a bit bowed -- but it's uncracked, and on balance seems not to have been read. A very nice PB reading copy.