Unorthodox - A Kendra Spark Novel, #1

Kendra Spark, suspense-mystery romance author and communicator with the dead, is requested to hop on the first flight to D. C. Jenna Powers, FBI criminal analyst and estranged best friend of Kendra, gets ghosticized in a fatal accident before relaying all the details of the FBI killer case. Derek Knight, a dedicated (hot) FBI Special Task Force agent, takes lead on the case. The investigation into the FBI agent killings continues as Kendra, Jenna - yes, even after death - and Derek work together on the case before Director of the Special Task Force Jackson Powers' number is up.
He's Jenna's father and the end-game of the killer's target list. Somehow the elusive killer remains undetected, until Kendra's unique ability produces results and a final possibility at stopping his killing spree before it's too late.