The Investigation Takes Shape
In Cold BloodThis thread follows the investigators as they move from a baffling crime scene toward a case built on testimony and physical evidence.
increasing
Bearing strength in each event
decreasing
A Case Without a Motive

A Case Without a Motive
Dewey takes charge
Alvin Adams Dewey leads the investigation for the Kansas Bureau of Investigation. His personal affection for Herbert William Clutter makes the case more than an ordinary assignment.
Competing explanations
Investigators debate whether one or two offenders acted and whether the crime arose from robbery or a personal grievance. Every theory remains fragile beside the missing motive.
Leads Collapse

Leads Collapse
Suspects examined
Investigators question acquaintances and possible enemies, including people whose histories seem to fit the crime. Alibis and weak connections repeatedly dissolve their best guesses.
The strain spreads
Alvin Adams Dewey and his team chase hundreds of tips while public fear grows. The evidence offers no dependable route to an arrest.
A Prisoner Speaks

A Prisoner Speaks
Wells breaks silence
Floyd Wells recognizes the crime from a radio report because he remembers Dick’s earlier talk of robbing Herbert William Clutter. Fear of retaliation and possible legal consequences delays his disclosure.
A name for the case
Once he tells prison officials, his account reaches Alvin Adams Dewey. The investigation gains suspects whose supposed plan resembles the crime too closely to ignore.
The Trail Turns West

The Trail Turns West
Corroborating details
Harold Nye checks the suspects’ movements and finds evidence linking them to forged checks, a stolen car, and the stolen Clutter possessions. Their flight has created a trail across several states.
A narrow opportunity
The detectives circulate descriptions and watch likely routes. The leads are still circumstantial, but the search is finally focused on two men.
Arrest and Confession

Arrest and Confession
The suspects captured
Police arrest Perry Smith and Dick in Las Vegas, Nevada, before they can disappear again. Investigators bring them into separate interviews and begin testing their accounts.
Evidence hardens
The recovered boots match crime-scene impressions, while confessions disclose the buried shells, cord, and tape. A case once thought nearly unsolvable becomes prosecutable.
November 16, 1959
Late November 1959
December 1959
December 1959
December 30, 1959–January 1960