In the United States, there are about 2,100 inmates on death row, most of whom have been convicted of aggravated murder. However, this is not the only characteristic they share.
Dr. Bill Kimberlin, a clinical psychologist, has engaged with death row inmates such as ‘BTK’ Dennis Rader and Samuel Little. He points out another commonality among these individuals, one that might surprise many.
Kimberlin initially visited death row facilities in Ohio. It was on his third visit that an inmate invited him to witness an execution, an invitation he accepted.
Following this experience, other inmates began reaching out to Kimberlin, requesting his presence at their executions. This led him to expand his research across the country, transitioning a few visits into a comprehensive study involving numerous interviews and visits over several years.
As a result, Kimberlin has gained significant insight into the lives of these inmates.
Beyond their criminal acts, Kimberlin reveals to UNILAD that a significant trait they all share is being ‘dangerously normal.’
“They don’t have ‘serial killer’ emblazoned on their faces,” he points out, noting how seamlessly they integrate into their surroundings, depending on their targets.
Contrary to popular portrayals, Kimberlin describes that during his interactions with inmates, he encounters no special security measures like handcuffs or shackles.
While he is aware of their criminal backgrounds, he mentions that without prior knowledge, others might not suspect the severity of their offenses.
“Their demeanor is such that unless you’re informed in advance that you’re interacting with a mass murderer or serial killer, you wouldn’t be able to tell.”
Kimberlin also notes that the inmates are ‘good at communicating’ and treat him with ‘respect’.
Given their courteous conduct, Kimberlin ensures he reciprocates with the same level of respect.
“I’m aware that whether I return home is up to them, so I remain mindful that I’m in their environment and adhere to their rules,” he explains.
This rapport enables inmates to divulge a wide range of information to Kimberlin — including confessions to additional crimes — and even invite him to witness their executions.
Between 1977 and 2026, there have been approximately 1,670 executions in the United States. Inmates typically spend an average of 22 years on death row, largely due to complex legal procedures and mandatory appeals. The duration can vary by state.
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