Over the following two weeks, Kennedy and, later, Detective Patrick Murphy conducted numerous interviews with Dahmer which, when combined, totalled over 60 hours.
Dahmer waived his right to have a lawyer present throughout his interrogations.
He wished to confess all as he had
"created this horror and it only makes sense I do everything to put an end to it."
He readily admitted to having murdered 16 young men in Wisconsin since 1987, with one further victim,Steven Hicks, killed in Ohio back in 1978.
Describing the increase in his rate of killing in the two months prior to his arrest, he stated he had been "completely swept along"with his compulsion to kill.
Describing the increase in his rate of killing in the two months prior to his arrest, he stated he had been "completely swept along"with his compulsion to kill.
On September 14, investigators in Ohio, formally identified two molars and a vertebra with X-ray records of Steven Mark Hicks.
Three days later, Dahmer was charged with his murder.
Dahmer was not charged with the attempted murder of Tracy Edwards.
Dahmer was not charged with the attempted murder of Tracy Edwards.
He was not charged with Steven Tuomi's murder because the Milwaukee County District Attorney only brought charges where murder could be proven beyond a reasonable doubt and Dahmer had no memory of actually committing this particular murder and no evidence was found.
At a scheduled preliminary hearing on January 13, 1992, Dahmer pleaded guilty but insane to 15 counts of murder.
He was tried in Milwaukee for the 15 counts of murder.
By pleading guilty on January 13 to the charges brought against him, Dahmer had waived his rights to an initial trial to establish guilt.
Two court-appointed mental health professionals, testifying independently of either prosecution or defense stated that the murders were the result of a pent-up aggression within himself.
That Dahmer killed those men because he wanted to kill the source of his homosexual attraction to them.
In killing them, he killed what he hated in himself.
They concluded that Dahmer was a sexual sadist with antisocial personality disorder, but legally sane.
His longing for companionship which caused Dahmer to kill.
They diagnosed Dahmer with a personality disorder not otherwise specified featuring borderline, obsessive-compulsive, and sadistic traits.
The trial lasted two weeks.
On February 15, the court reconvened and Dahmer was ruled to be sane and not suffering from a mental disorder at the time of each of the 15 murders for which he was tried, although in each count, two of the 12 jurors signified their dissent.
The trial lasted two weeks.
On February 15, the court reconvened and Dahmer was ruled to be sane and not suffering from a mental disorder at the time of each of the 15 murders for which he was tried, although in each count, two of the 12 jurors signified their dissent.
On the first two counts, Dahmer was sentenced to life imprisonment plus ten years, with the remaining 13 counts carrying a mandatory sentence of life imprisonment plus 70 years. The death penalty was not an option as the State of Wisconsin had abolished capital punishment in 1853.
Three months after his conviction for 15 murders in Milwaukee, Dahmer was extradited to Ohio to be tried for the murder of his first victim, Steven Hicks.
Three months after his conviction for 15 murders in Milwaukee, Dahmer was extradited to Ohio to be tried for the murder of his first victim, Steven Hicks.
Dahmer again pleaded guilty to the charges and was sentenced to a 16th term of life imprisonment on May 1, 1992.
For the first year, Dahmer was placed in solitary confinement due to concerns for his physical safety.
With Dahmer's consent, after one year in solitary confinement, he was transferred to a less secure unit, where he was assigned a two-hour daily work detail cleaning the toilet block.
He requested a copy of the bible and gradually devoted himself to Christianity.
He requested a copy of the bible and gradually devoted himself to Christianity.
He became a born-again Christian and in May 1994, Dahmer was baptized in the in the prison whirlpool.
In July 1994, a fellow inmate, Osvaldo Durruthy, attempted to slash Dahmer's throat with a razor embedded in a toothbrush as Dahmer returned to his cell from weekly church service conducted.
He received superficial wounds.
He had long been ready to die, and accepted any punishment which he might endure in prison.
In addition to his father and stepmother retaining regular contact, Dahmer's mother, Joyce, retained regular contact with her son.
Joyce Dahmer related that in her weekly phone calls, whenever she expressed concerns for her son's physical well-being, Dahmer responded with comments to the effect of:
"It doesn't matter, Mom.
I don't care if something happens to me.
With him were two inmates, Jesse Anderson and Christopher Scarver.
They were left unsupervised in the showers for about 20 minutes. Dahmer was discovered on the floor of the bathroom at 8:10 a.m.
He had been severely bludgeoned about the head and face with a 20-inch metal bar.
His head had also been repeatedly struck against the wall.
Dahmer was still alive and was rushed to a nearby hospital, he was pronounced dead one hour later.
Anderson had also been beaten with the same instrument, and died two days later from his wounds.
Scarver, was serving a life sentence for a murder committed in 1990, informed authorities he had first attacked Dahmer with the metal bar, before attacking Anderson.
Immediately after attacking both men, Scarver, returned to his cell and informed a prison guard:
"God told me to do it. Jesse Anderson and Jeffrey Dahmer are dead."
Upon learning of his death, Dahmer's mother Joyce Flint responded angrily to the media:
"Now is everybody happy? Now that he's bludgeoned to death, is that good enough for everyone?"
On May 15, 1995, Scarver was sentenced to two additional terms of life imprisonment for the murders of Dahmer and Anderson.
Scarver was revolted by Dahmer's crimes and that Dahmer had been openly unrepentant.
Scarver was revolted by Dahmer's crimes and that Dahmer had been openly unrepentant.
Allegedly, knowing of Scarver's hatred for Dahmer, the prison staff had deliberately left the two men unsupervised so that he could kill him.
Dahmer had stated in his will he wished for no services to be conducted and that he wished to be cremated.
In September 1995, Dahmer's body was cremated, and his ashes divided between his parents.