Inside Man

The second novel in the Head Cases series follows Gardner Camden, a brilliant but socially atypical FBI agent who leads PAR (Patterns and Recognition), a small analytical unit tasked with solving cases others cannot. Gardner possesses near-perfect memory, exceptional computational ability, and an unusually low emotional affect. His team consists of his partner Joanne "Shooter" Harris, Richie Brancato, and Cassie Pardo.

The story opens with Gardner and Shooter discovering their confidential informant, Freddie Pecos, shot dead in his mobile home near Hambis, Florida. Pecos had been feeding PAR intelligence on J. P. Sandoval, an arms dealer who runs militia groups and uses stolen unemployment funds to stockpile ghost guns, untraceable firearms intended for use against law enforcement. Before his death, Pecos reported that Sandoval also ordered two thousand firearm kits from an unknown manufacturer. With dirty local cops compromising the investigation, Gardner stages the scene as an accidental fire, having Shooter extract the bullet and dousing the body with grain alcohol. He and Shooter flee with key evidence before Sandoval's men arrive and trigger a gas-pipe explosion that destroys the trailer.

FBI Director Craig Poulton, who replaced his predecessor fifteen months earlier, is furious about the burned informant but accepts Gardner's reasoning. He gives PAR forty-eight hours to find a new informant or risk the unit's future. The team targets Travis Wells, a Sandoval associate, planning to exploit a local district attorney who prosecutes DUIs as third strikes carrying life sentences. They set up surveillance at a bar called the Rotten Coconut, but the operation shifts when Sandoval himself appears and has his bodyguards drown an errand boy in the restroom. Wells, shaken by the killing, drinks heavily and gets arrested for DUI, inadvertently completing the team's plan.

While waiting for Wells to become receptive to a deal, Richie uncovers a lead connecting Pecos's death to another case. ATM surveillance footage shows an unidentified man approaching Pecos shortly before his death, and AI-enhanced facial recognition matches the man to a composite sketch from an unsolved case involving three women buried in Shilo, Florida. Gardner and Richie travel to Shilo, where Gardner uses geographic analysis to predict where additional bodies might be buried. They find a female skeleton, confirming the man is likely a serial killer.

Gardner then receives startling personal news: His mother, poisoned fifteen months earlier by a suspect Gardner had pushed too hard, has woken from her coma. He flies to Dallas to see her. She initially does not recognize him but eventually calls him "Gardy," her private nickname for him. A former behavioral consultant for the Charleston Police Department, she shaped his worldview, teaching him to embrace his different mind and never use his intellect as a weapon.

The investigation splits across two fronts. In Shilo, the team unearths five more skeletons, bringing the killer's total to at least ten victims. Gardner meets with Barry Kemp, deputy director of the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF), who agrees to let PAR keep the gun case. Poulton sends Frank Roberts, Gardner's former boss and PAR's founder, to project-manage the team. Frank had left PAR to run the Dallas FBI office but is unhappy there. Gardner accepts his return, offering to work under him again.

The serial murder investigation intensifies as the team identifies victims through jewelry, a titanium surgical rod, and family interviews. A critical break comes when they trace victim Mavreen Isiah's identity to a plumbing supply house where her sister, Amber Isiah, has been living under the dead woman's name for a year out of fear. Amber confirms that Mavreen fell under the suspect's control after meeting him at a medical office where she worked. Mavreen grew increasingly frightened before vanishing, and when Amber called one of her sister's numbers, a man threatened to cut her. Separately, Gardner confirms through sketch artist W. C. Walker that witnesses referred to the suspect by the Spanish nickname el médico, meaning "the doctor."

On the gun case, Wells agrees to cooperate, revealing that Sandoval's weapons are stored in a row house in Foggy Bottom, a Washington, D.C., neighborhood. At an ammunition pickup, however, Sandoval's enforcer murders Wells. The team follows the ammunition truck to D.C., where Gardner's analytical deductions pinpoint the exact row house. A crisis accelerates the timeline: A medical examiner finds evidence of foul play on Pecos's burned body, and once dirty cops learn of it, they will alert Sandoval. Poulton authorizes an immediate raid. Ten militia members die, five are wounded, and four are captured, along with an arsenal of over three hundred firearms. Gardner discovers a bomb in the garage and sprints inside to stop a Critical Incident Response Group (CIRG) agent from triggering the device. Sandoval is arrested in Georgia.

The serial case turns dire when El Médico attacks Richie at his hotel, injecting him with a tranquilizer and stealing his case files. Gardner administers Narcan, an emergency overdose-reversal medication, and Richie whispers a phrase the attacker said: "You shouldn't have seen my face. It wasn't ready" (291). Richie's condition deteriorates at the hospital. Natalie Kastner, Pecos's cousin who had recognized the composite sketch and linked it to a childhood acquaintance, is found murdered; El Médico used Richie's stolen files to locate her. Amber Isiah also disappears.

Frank locates an animal clinic where a former employee named "Donnie Dom" stole the clinic's supply of xylazine, a veterinary tranquilizer, along with surgical instruments. Gardner realizes the strips wrapping the victims' bodies are precut animal burial shrouds and instructs Frank to obtain atipamezole, a veterinary drug that reverses xylazine sedation, from the same clinic. After consultation with Richie's grandfather, former FBI Director William Banning, the drug is administered and Richie stabilizes.

Working through the night in Lucas Beach, Gardner connects the alias "Donnie Dom" to a local estate called Aurora House: "Dom" is Polish for "house," and "Dawn" is a synonym for "Aurora." He enters the estate alone during a storm and discovers a jar containing the face of Edward Burrows, the reclusive owner, preserved in solution. The killer, born Donnel Smolak, is the illegitimate son of Edward's father, Paul Burrows, and a Polish immigrant waitress. Excluded from the family inheritance, Donnel spent years abducting women, sedating them with xylazine, and practicing plastic surgery on their faces to perfect techniques for reshaping his own face to resemble Edward's, planning to assume his half brother's identity and estate. Donnel knocks Gardner unconscious, but Richie, tracking Gardner's movements from his hospital bed via group texts, arrives and shoots Donnel dead.

Two weeks later, the team receives commendations from Poulton and Kemp. Gardner has moved his mother to a Miami nursing facility and found a nearby apartment for himself and his eight-year-old daughter, Camila. Frank will formally return to lead PAR, with Gardner stepping aside while keeping his title and pay. However, Gardner realizes the gun case is not fully resolved. A conversation with Camila and Cassie about chocolate sweepstakes codes triggers an insight: someone is flooding the market with guns bearing meaningless serial numbers to undermine the ATF's eTrace firearms-tracing system. Gardner connects the scheme to O'Reilly, the ATF agent whose suspiciously specific knowledge during their earlier encounter betrayed insider awareness. At the Port of Miami, authorities discover a shipping container full of firearms with nonsensical serial numbers, and O'Reilly flees as a fugitive. The novel closes with Gardner kissing Cassie on the cheek, their first gesture beyond partnership, as they drive into the Miami night.