Thomas Ryan, 32, was arrested after an intense police search in New York, accused of being related to the death of his father, Robert Ryan, 70, whose body was found inside a burned home in Orange County.

State authorities reported that Ryan was considered armed and dangerous while he remained at large. A preliminary investigation determined that the fire at the Greenville Turnpike residence in Greenville was deliberately set and that the 70-year-old man's death is being investigated as a homicide.

The capture of the suspect occurred after several days of searching and a police deployment in the area.

The body was found after the fire

Investigators responded to a home on Greenville Turnpike on Thursday after receiving a report of a fire. Once crews managed to extinguish the flames, they located the lifeless body of a man inside.

The victim was later identified as Robert Ryan, 70, father of Thomas Ryan.

According to the New York State Police, the preliminary investigation established that the fire had been started intentionally. Based on those findings, authorities began investigating Robert Ryan's death as a homicide.

Thomas Ryan then became the main suspect and a search was launched to locate him.

State authorities initially indicated that the man was considered armed and dangerous and warned area residents about his possible presence.

The police reconstructed their movements

During the search, investigators carried out extensive work collecting images from security cameras in the vicinity of the home and in nearby areas.

Police also conducted video tracing to try to reconstruct Ryan's movements before and after the fire.

A Ring camera recording obtained by ABC News apparently shows Ryan running from the home while it was on fire.

Authorities also noted that Ryan had a lifestyle considered transient and had stayed in different shelters in New York. Investigators reviewed those locations as part of the search and continued to verify tips provided by citizens.

Before his arrest, police had indicated that Ryan could travel in a 2016 gray Toyota Prius, a vehicle that authorities linked to the victim.

It had also been reported that the suspect used to use trains to get around, so investigators coordinated efforts with organizations linked to rail transport.

There was a reinforced police presence in Greenville

While Ryan remained at large, the New York State Police increased patrols in Greenville and nearby communities.

Investigators asked residents to review their corresponding security camera recordings from approximately 6:00 p.m. on Thursday and for the following hours, in order to identify any movement related to the suspect.

Police had described Ryan as a man about 6 feet, 2 inches tall and weighing about 200 pounds.

At the time he was wanted, he was last seen in the Greenville Turnpike area wearing black sweatpants and a black t-shirt.

Authorities were also examining his mental health history as part of the investigation, according to sources cited in the available information.

Family remembers Robert Ryan

As the investigation continued, relatives of Robert Ryan expressed their grief over the death of the 70-year-old man.

Stephanie Coiro, the victim's daughter, told ABC News that her father had been an important figure within his family and the communities in which he lived.

“My dad was a pillar in our family and in every community he was part of,” said Coiro.

The daughter described Robert Ryan as a person who made others feel welcome and helped those in need.

He also stated that his father did not deserve to die that way.

Robert Ryan had retired to Orange County, while the rest of his family resided on Long Island, according to police sources cited in the available information.

Authorities further noted that Thomas Ryan was not living with his father at the time of the incident and had no other known ties to the Greenville community.

The investigation continues

Although Thomas Ryan was arrested, the investigation into Robert Ryan's death and the fire continues.

Detectives are working to determine precisely what happened at the home and reconstruct the suspect's movements before and after the fire.

The New York State Police also continues to review evidence collected at the scene and surveillance footage obtained during the investigation.

The case remains under investigation by state authorities.

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