Marvin Gray

His freedom was extremely limited – he was obliged to find a job, had a probation officer appointed to him, and was prohibited from the limits of the State of Colorado and move closer to places where children and adolescents congregated. Two days after his release, Gray got on a bus and left for Paducah, Kentucky to visit his relatives, thereby violating the conditions for early release. Having appeared in the city, Marvin sought out his family members, but they, fearing his temper and reputation, were told by police to be vigilant, receiving $200 in return, forcing Marvin to get on a bus a few days later and return to Colorado.

Marvin Gayle Gray died on July 19, 2013 from heart failure while imprisoned in the Colorado State Penitentiary, located in Cañon City.

Despite the fact that almost immediately after his confession, Marvin Gray became interested in the FBI, which began its own investigation, the credibility of his testimony caused controversy. In some instances Gray described in some detail the murders committed many years ago and even provided evidence for this, albeit indirect, that nevertheless made it difficult to ignore his confessions. In 2001, he was required to undergo a polygraph test. The audit confirmed the truthfulness of his confessions in at least 18 murders, but soon the test results were invalidated due to the fact that Gray was taking medication. 

On June 6, 2001, Gray was charged with the murder of Joseph Didier and Joseph Solise, and received another life sentence as punishment. In June 2002, he made another confession, this time admitting that in June 1992 he killed five women in his hometown of Princeton. Gray petitioned to be transferred to the crime scene, where he was ready to show the burial places of the victims. The true scale of his crimes remains unknown.

In the 2000s, he was considered the most dangerous prisoner in the state of Colorado, being convicted of 3 murders and suspected in several others, personally confessing to killing 41 people across 8 different states from 1971 to 1992. However, the credibility of his testimony continued to be disputed until his death.

After serving under similar conditions for almost 7 years, Marvin Gray began to show signs of deviant behavior, beginning in 2000, when he suddenly began confessing to murders he had never been accused of committing. By December 22, 2000, he confessed to 23 murders. He was transferred to the court, at which he threatened to kill his lawyers appointed by the state. By March 2001, Marvin Gray confessed to committing 31 murders and was interviewed by The Denver Post, in which he revealed the details of biography and criminal career.

On July 19, 1993, Gray beat and raped his 27-year-old cellmate Gary Hilton. Less than a week later, he committed another similar crime by raping James Mervyn, after which he was transferred to the Colorado State Penitentiary, a special high-security prison where exceptional measures were taken against him.

He did several odd jobs until 1992, when he again was arrested for burglary. Given the severity of the crime he committed in 1984 and the violation of the conditions of his parole, the court, based on judicial directives in effect at the time in the state of Colorado, Marvin Gray was given life imprisonment. From this point on he was never released again.

At the time, Marvin Gray weighed 140 kilograms (308 lbs.), and he continued to be heavily invested in powerlifting for several years. His official record in the bench press was 250 kilograms (551 lbs.), squatting 450 kilograms (992 lbs.) and deadlifting 390 kilograms (860 lbs.). In November 1992, Gray was charged with the murder of another prisoner named Daniel Green, who was an informant in a drug case. Gray blamed Green's murder on two black cellmates, while five other inmates testified against Marvin. However, despite the fact that he was charged with 1st degree murder, Gray was never convicted of Green's murder. In early 1993, he was transferred to another prison.

In 1986 he was first charged with raping a cellmate, but the investigation was soon terminated due to lack of evidence that the act was violent. Gray got off with an administrative penalty and was transferred to a prison with more stringent conditions of detention. He was released on parole on January 18, 1991. 

At the same time, it became clear that a number of Gray's statements had nothing to do with reality. In some instances, Marvin's confessions reflected a big discrepancy in dates, geographic data and the seasons when the victims were allegedly killed, some of the killings and disappearances of people whom Gray could theoretically be related to while he was serving time in prison. In one case, he revealed the details of a double murder that was carried out in 1991 in Louisville, Colorado, but then, confused in his testimony, he said that he had lied. In general, his stories reflected a bad memory. 

Gray escaped again and was once again arrested on August 11, 1982. He reappeared in Denver, where he met a girl named Joleen Sue Gardner on September 1. After refusing to have sex with him, Gray stabbed her 14 times, after which she died. Gray was arrested and convicted in 1984, with a sentence of 16 years imprisonment.

He also confessed to the murder of a man that he committed in the state of Indiana in 1982. When he was released for the last time, in January 1991, Gray alleged that he committed the most murders during that year than the entirety of his life. He described in detail the murder of a young man in the city of San Francisco, which he allegedly committed in 1991, and then threw the corpse into a dog kennel. According to Marvin's testimony, he also committed 3 murders in the summer of 1992, shooting Joseph Solise, killing a prostitute in Denver and killing another man. The last crime to which Marvin Gray confessed to was the murder of Daniel Green. Despite his extensive testimony, Gray was charged only with the murders of Didier and Solise, the latter being killed in 1992 in Denver during a robbery.

In 1978, Gray was released early and returned to Kentucky. Soon he met with 17-year-old Sheila Olsbrook, who bore him a son in 1979. The whole duration of their relationship, Gray scoffed and beat Olsbrook, only ending after the next arrest of Marvin in 1979 for stealing a car. He was helped in this crime by accomplice William Purdue. On March 16, 1980, Gray, Purdue and another inmate named Jerry Keller escaped from prison. They hijacked a van, but quarreled along the way, as a result of which Gray beat Keller to death and disposed of his body in the city.

While in custody, according to the investigation, committed his first crime against an inmate. Inmate David Cook was found beaten and strangled at the end of 1977 in his cell. Gray was pointed at as a suspect by several witnesses. Subsequently, these prisoners changed their testimonies, and even despite allegations that Gray threatened many in prison with physical violence, he was never charged with the murder of Cook.

During his incarceration, Gray first took up powerlifting, developed a tattoo addiction, and became an ardent supporter of the concept of white supremacy. Released in early 1975, he weighed more than 100 kilograms (220 lbs.) with a height of 1.90 metres (6'2") and possessed impressive muscles and physical strength. At the insistence of his elder brother Eugene, he soon moved to Denver, where he found a job at the O'Neal Hotel, located in the city center. In the summer of 1975, Gray and his friend William Felder were arrested on charges of assaulting police officer James Datsman, who had received a gunshot wound.

He admitted to committing his first murder in 1971, when he was just 17 years old. Almost 26 years later, Gray confessed that it was he who killed Joseph Didier on the day that he attempted to kill James Datsman. Marvin also said that after serving his sentence, released in 1978 and met Sheila Olsbrook, it became necessary to control his 17-year-old girlfriend, so he committed a series of 7 murders allegedly in the states of Nebraska, Tennessee, Iowa, Kentucky and Illinois. He also claimed responsibility for the disappearance of his accomplice, William Purdue, with whom he had escaped from prison in 1980. According to Gray, he killed Purdue by stabbing him in the neck with a screwdriver and threw his body in a landfill.

In 1970, Gray burst into a neighbor's garage and stole a weapon from a car. Within a few days, he made several more thefts and attacks, threatening his victims with a pistol. After being arrested, Gray was accused of robbery, burglary, illegal possession of weapons and the threat of murder. In 1971, at the age of 17, Gray received 5 years in prison. He was transferred to the Kentucky State Prison, a 100-year-old stone prison called "The Castle" in the city of Addivillus.

According to Gray, an informal hierarchy of minors reigned in the institution, where the youngest and most physically weak were subjected to sexual violence and all kinds of humiliation. Being in this institution, Gray's psycho-emotional state changed a lot, he learned self-defense, and also acquired destructive feelings such as rage, hatred towards elders and representatives of the law, as well as such moral-psychological traits such as cruelty and callousness. When he was released in 1968, he began to his criminal career. On the first day of school, he was expelled for carrying deadly weapons and threatening school officials.

His panic attacks ended in 1965, when his father suffered from a heart attack, after which the main responsibilities for raising children and running the family's budget fell on the shoulders of Marvin's mother. At the same time, having freed himself from excessive parental care, his behavior changed dramatically, with his grades and discipline plummeting. Marvin was first arrested at the age of 12, and subsequently convicted of infiltrating into foreign property and theft, and was sent to an institution for juvenile offenders.

Marvin Gayle Gray (born August 7, 1954 – July 23, 2013) was an American murderer and suspected serial killer who gained fame in the 2000s due to his deviant behavior. Being a powerlifter, Gray, while imprisoned, achieved incredible results in powerlifting, almost breaking world records. Since 1992, relying on his physical strength, he committed several rapes and murders of fellow inmates, which resulted in taking exceptional measures against Gray by putting him in a high-secutiry prison's solitary confinement cell, restriction of movement within the prison and others. 

Marvin Gayle Gray was born on August 7, 1954 in Princeton, Caldwell County in rural Kentucky. He was the 7th child in a family of 10 children. From the age of 4 years, Marvin began to suffer from panic attacks, and as a result of which he had to spend the next 7 years taking drugs containing methamphetamines. Since early childhood, Marvin was attracted to work in the tobacco fields and labor discipline industries.