Bio

Sean Paul Hanify was born on January 20, 1970. He was adopted as a young child and grew up in Gillette, Wyoming. In a jailhouse interview, he claimed he had a normal childhood. However, his public defender later said available evidence suggested fetal alcohol syndrome, childhood abuse, mental illness, and developmental problems. Because these claims come from defense statements and media reporting, they should be presented as reported background rather than fully established fact.

Hanify was born with a cleft palate and reportedly experienced teasing as a child. He attended schools in Wyoming and participated in wrestling. According to people who knew him when he was young, he was small, eager to please, and not remembered as violent during school years.

At age 16, Hanify ran away from home and went to Denver. He later said he survived as a street hustler and worked as a prostitute along Colfax Avenue. Public records and media reports state that he had repeated arrests for prostitution during his late teenage years.

By the 1990s, Hanify had come under police attention in connection with several unsolved Denver homicides, but he was not charged in those cases at the time. He later claimed involvement in multiple killings in Colorado, California, and Utah. Investigators reviewed several of those claims, but most could not be confirmed.

Murder Story

Sean Paul Hanify’s first confirmed murder conviction involved Mark Warren Davis, a homeless man found dead near Cherry Creek in Denver in July 2000. Davis was discovered under an overpass with serious head injuries and a knife in his neck. Prosecutors later charged Hanify with first-degree murder in that case. Hanify reportedly claimed he killed Davis with a rock and later returned to the area to take items from him.

Hanify’s second confirmed murder conviction involved Edward Brown, his 59-year-old roommate. Brown lived in an apartment at 810 East 12th Avenue in Denver. Firefighters discovered his body on August 6, 2002, after responding to a fire at the apartment. Brown had been beaten, stabbed, mutilated, and set on fire.

Hanify was arrested after he crashed a vehicle belonging to Brown. During police questioning, he confessed to killing Brown. He said the killing was retaliation because Brown had previously reported him after he stole Brown’s VCR, leading to Hanify spending time in prison.

At trial, Hanify’s defense argued that he was legally insane when he killed Brown. His attorneys said he suffered from a severe psychotic disorder. Prosecutors acknowledged that he had mental health issues but argued that he was legally sane because he acted intentionally and understood right from wrong.

In December 2005, a Denver jury rejected the insanity defense and convicted Hanify of first-degree murder for killing Edward Brown. Hanify was later tried for the murder of Mark Davis. On January 29, 2007, he was convicted of first-degree murder in Davis’s death.

On February 27, 2007, Hanify was sentenced to two terms of life imprisonment without the possibility of parole. He also received additional sentences for aggravated motor vehicle theft and first-degree arson, which were ordered to run concurrently with the life sentences.

Hanify also claimed to have killed other men, including possible victims in Denver, San Francisco, and Utah. Authorities investigated some of those claims, but most could not be verified. Police publicly stated that several of his statements were difficult to corroborate.

In 2011, the Colorado Supreme Court refused to hear Hanify’s challenge to his murder convictions, leaving his convictions and life sentences in place. Sean Paul Hanify remains imprisoned, serving life without parole.