Authorities in Florida have apprehended a truck driver who, after acting erratically in the middle of the road, was revealed to be a murderer. Witnesses described the man as lying down and rolling around on the ground. Police claim he killed his cousin and concealed the body in a compartment beneath the “sleeper” area of his truck.

“He basically just stated he was taking a breather,” St. Lucie County Sheriff Richard Del Toro explained to reporters at a press conference Tuesday about Olson Jean, 41, who is charged with first-degree murder in the death of Wendy Moncion, 32.

While officers were questioning the man, an unattended 2020 Freightliner semi-truck was discovered in the vicinity. The police inquired if he was connected to the vehicle.

“He initially denied any ownership of the truck,” Del Toro stated. “However, we traced the truck back to an LLC and contacted its owner, who confirmed that the vehicle was leased to [Jean]. His denial was a blatant lie.”

During the interaction with officers, Jean reportedly claimed, “I drive a waste management tractor,” and attempted to leave. When questioned about his whereabouts, he said he had been jogging and motioned northward. Regarding his residence, he vaguely indicated behind him, saying, “On the other side.”

Officers decided to investigate the semi-truck further and noticed traces of blood on its exterior, according to Del Toro. A search warrant allowed them to uncover additional evidence of a crime inside, as the sheriff reported.

“Blood all over,” Del Toro told reporters.

Deputies canvassed the area and recovered a Palmetto State Armory PA-15 rifle, a Springfield Hellcat handgun, and handgun magazines matching the Springfield handgun. The firearms and magazines were located near a canal and appeared to have been “intentionally placed there,” according to Del Toro.

Inside the truck, cops found a body that was later identified as Moncion, of Coconut Creek. He was confirmed to be Jean’s cousin by family.

“Inside a storage compartment, beneath the sleeper — the bed area in the back — deputies located [Moncion],” Del Toro said. “The medical examiner conducted an autopsy [and] determined the cause of death to be a single gunshot wound to the back of the head.”

Jean was taken into custody and police began probing the discovery as a homicide.

According to Del Toro, individuals related to Jean and Moncion told investigators that the two of them were riding together from Georgia to Florida. Jean allegedly expressed “safety concerns to family members about sleeping in his truck” during stops along the route to Florida, and Moncion was keeping him company.

“[Jean] was afraid, basically,” Del Toro explained. “According to the wife, [Jean] has been kind of paranoid lately. Acting kind of erratically. She expressed the fact that … they were going to maybe get some mental health treatment for him. So, we believe Mr. Moncion, his cousin, traveled to Georgia with the intent of accompanying him back here [to Florida], to just basically keep him company. And for whatever reason, he decided to kill our victim.”

Moncion’s last contact with family was on Jan. 15, according to Del Toro and Moncion’s relatives.

Jean was arrested and booked in the St. Lucie County Jail, where he is currently being held without bond. Police are still investigating what caused him to allegedly kill Moncion.

“It’s still under investigation,” Del Toro concluded.