Writing as: T. L. Williams

According to the bio on Amazon: "T .L. Williams is a veteran officer of the CIA's Clandestine Service. Over a thirty-year career he served in Asia, Europe and Central Eurasia where he was engaged in clandestine collection of critical national security intelligence with an emphasis on denied area operations. Williams conducted recruitment operations against East Asian, Middle Eastern, East European and Caribbean targets. As Chief in CIA Stations he partnered with foreign allies in counterterrorism, counterproliferation, and counternarcotics operations.

He lives with his wife, Carol, in northeast Florida."

Series Books
Logan Alexander Cooper's Revenge (2012)
  Unit 400 The Assassins (2013)
  Zero Day: China's Cyber Wars (2017)
  The Last Caliph (2019)