From talks with some of the authors and help from some online friends I have what seems to be a list of who wrote which books in the Destroyer series.

The Assassin's Handbook/Inside Sinanju- Will Murray, Richard Sapir & Warren Murphy

#1 Created, The Destroyer- Richard Sapir & Warren Murphy

#2 Death Check- Richard Sapir & Warren Murphy

#3 Chinese Puzzle- Richard Sapir & Warren Murphy

#4 Mafia Fix- Richard Sapir & Warren Murphy

#5 Dr. Quake- Richard Sapir & Warren Murphy

#6 Death Therapy- Richard Sapir & Warren Murphy

#7 Union Bust- Richard Sapir (& Warren Murphy)

#8 Summit Chase- Warren Murphy

#9 Murder's Shield-Richard Sapir & Warren Murphy

#10 Terror Squad- Richard Sapir & Warren Murphy

#11 Kill or Cure- Richard Sapir & Warren Murphy

#12 Slave Safari- Richard Sapir & Warren Murphy

#13 Acid Rock- Richard Sapir & Warren Murphy

#14 Judgment Day- Richard Sapir & Warren Murphy

#15 Murder Ward- Richard Sapir & Warren Murphy

#16 Oil Slick- Richard Sapir & Warren Murphy

#17 Last War Dance- Richard Sapir & Warren Murphy

#18 Funny Money- Richard Sapir & Warren Murphy

#19 Holy Terror- Richard Sapir & Warren Murphy

#20 Assassin's Play-Off- Richard Sapir & Warren Murphy

#21 Deadly Seeds- Richard Sapir & Warren Murphy

#22 Brain Drain- Richard Sapir & Warren Murphy

#23 Child's Play- Richard Sapir & Warren Murphy

#24 King's Curse- Richard Sapir & Warren Murphy

#25 Sweet Dreams- Warren Murphy & Ric Meyers

#26 In Enemy Hands- Richard Sapir & Warren Murphy

#27 The Last Temple- Warren Murphy & RicMeyers

#28 Ship of Death- Richard Sapir & Warren Murphy

#29 The Final Death-Richard Sapir, Warren Murphy & Ric Meyers

#30 Mugger Blood- Richard Sapir & Warren Murphy

#31 The Head Men- Richard Sapir & Warren Murphy

#32 Killer Chromosomes- Richard Sapir & Warren Murphy

#33 Voodoo Die- Richard Sapir & Warren Murphy

#34 Chained Reaction- Richard Sapir & Warren Murphy

#35 Last Call- Warren Murphy

#36 Power Play- Warren Murphy

#37 Bottom Line- Warren Murphy

#38 Bay City Blast- Warren Murphy

#39 Missing Link- Warren Murphy

#40 Dangerous Games- Warren Murphy & Robert Randisi

#41 Firing Line- Warren Murphy

#42 Timber Line- Warren Murphy & William Joy

#43 Midnight Man- Warren Murphy & Robert Randisi

#44 Balance of Power- Richard Sapir, Warren Murphy & Molly Cochran

#45 Spoils of War- Molly Cochran

#46 Next of Kin- Molly Cochran

#47 Dying Space- Molly Cochran

#48 Profit Motive- Richard Sapir & Warren Murphy

#49 Skin Deep- Molly Cochran

#50 Killing Time- Molly Cochran

#51 Shock Value- Molly Cochran

#52 Fool's Gold- Richard Sapir & Warren Murphy

#53 Time Trial- Molly Cochran

#54 Last Drop- Molly Cochran

#55 Master's Challenge- Richard Sapir, Warren Murphy & Molly Cochran

#56 Encounter Group- Warren Murphy & William Murray

#57 Date with Death- Warren Murphy, Molly Cochran & Ed Hunsburger

#58 Total Recall- Warren Murphy & Robert Randisi

#59 The Arms of Kali- Richard Sapir & Warren Murphy

#60 The End of the Game- Richard Sapir & Warren Murphy

#61 Lords of the Earth- Richard Sapir & Warren Murphy

#62 The Seventh Stone- Richard Sapir, Warren Murphy & Ed Hunsburger

#63 The Sky Is Falling- Richard Sapir & Will Murray

#64 The Last Alchemist- Richard Sapir & Will Murray

#65 Lost Yesterday- Richard Sapir & Will Murray

#66 Sue Me Richard Sapir-

#67 Look into my Eyes- Richard Sapir

#68 An Old-Fashioned War- Richard Sapir

#69 Blood Ties- Will Murray & Warren Murphy

#70 The Eleventh Hour- Will Murray, Warren Murphy & Molly Cochran

#71 Return Engagement- Will Murray & Warren Murphy

#72 Sole Survivor- Will Murray & Warren Murphy

#73 Line of Succession- Will Murray & Warren Murphy

#74 Walking Wounded- Will Murray

#75 Rain of Terror- Will Murray

#76 The Final Crusade- Will Murray

#77 Coin of the Realm- Will Murray

#78 Blue Smoke and Mirrors- Will Murray

#79 Shooting Schedule- Will Murray

#80 Death Sentence- Will Murray

#81 Hostile Takeover- Will Murray

#82 Survival Course- Will Murray

#83 Skull Duggery- Will Murray

#84 Ground Zero- Will Murray

#85 Blood Lust- Will Murray

#86 Arabian Nightmare- Will Murray

#87 Mob Psychology- Will Murray

#88 The Ultimate Death- Will Murray, Ric Meyers & Jim Mullaney

#89 Dark Horse- Will Murray

#90 Ghost In The Machine- Will Murray

#91 Cold Warrior- Will Murray

#92 The Last Dragon- Will Murray

#93 Terminal Transmission- Will Murray

#94 Feeding Frenzy- Will Murray & Warren Murphy

#95 High Priestess- Will Murray

#96 Infernal Revenue- Will Murray

#97 Identity Crisis- Will Murray

#98 Target of Opportunity- Will Murray

#99 The Color of Fear- Will Murray

#100 Last Rites- Will Murray

#101 Bidding War- Will Murray & Richard Sapir (written after Sapir's death from an idea he had)

#102 Unite and Conquer- Will Murray

#103 Engines of Destruction- Will Murray

#104 Angry White Mailmen- Will Murray

#105 Scorched Earth- Will Murray

#106 White Water- Will Murray

#107 Feast or Famine- Will Murray

#108 Bamboo Dragon- Mike Newton

#109 American Obsession- Alan Philipson

#110 Never Say Die- Mike Newton

#111 Prophet of Doom- Jim Mullaney

#112 Brain Storm- Jim Mullaney

#113 The Empire Dreams - Jim Mullaney

#114 Failing Marks- Jim Mullaney

#115 Misfortune Teller- Jim Mullaney

#116 The Final Reel- Jim Mullaney

#117 Deadly Genes- Jim Mullaney

#118 Killer Watts- Jim Mullaney

#119 Fade to Black- Jim Mullaney

#120 The Last Monarch- Jim Mullaney

#121 A Pound of Prevention- Jim Mullaney

#122 Syndication Rites- Jim Mullaney

#123 Disloyal Opposition- Jim Mullaney

#124 By Eminent Domain- Jim Mullaney

#125 The Wrong Stuff- Jim Mullaney

#126 Air Raid- Jim Mullaney

#127 Market Force- Jim Mullaney

#128 The End of the Beginning-Jim Mullaney

#129 Father to Son- Jim Mullaney

#130 Waste Not, Want Not- Jim Mullaney

#131 Unnatural Selection- Jim Mullaney

#132 Wolf's Bane- Mike Newton

#133 Troubled Waters- Mike Newton

#134 Bloody Tourists- Tim Somheil

#135 Political Pressure- Tim Somheil

#136 Unpopular Science- Tim Somheil

#137 Industrial Evolution- Tim Somheil

#138 No Contest- Tim Somheil

#139 Dream Thing- Tim Somheil

#140 Dark Ages- Tim Somheil

#141 Frightening Strikes Tim Somheil

#142 Mindblower- Tim Somheil

#143 Bad Dog- Tim Somheil

#144 Holy Mother- Tim Somheil

#145 Dragon Bones- Tim Somheil

The New Destroyer:Guardian Angel-Warren Murphy and James Mullaney from Tor Books

The New Destroyer:Choke Hold-Warren Murphy and James Mullaney, due in October from Tor Books