Decomposing remains discovered on May 20 when an employee at a Las Vegas warehouse noticed a ‘foul-smelling odor’ coming from a storage container, belonged to freelance journalist Matthew Kelemen

Investigators believe Kelemen, 56, was struck from behind with a hammer and his body stuffed in a box inside a storage container, according to his family

Cops discovered Kelemen’s roommate Joseph Del Rivo, 63, had hired the storage container through a luggage storage app called Bounce

Del Rivo dropped the box at the facility on Monday using Bounce, an app used by businesses to transport goods and store them short-term

Employees reportedly found the decomposing journalist when a moving company came to pick up the storage container on Tuesday

Officers noted that the moving company called Del Rivo to report that the box could not be moved

That same day, Del Rivo was killed in Utah when he flipped his car driving at 140 mph, during a high-speed chase with police

Las Vegas based freelance journalist Matthew Kelemen [photo], was found dead on May 20 stuffed into a box in a storage container after allegedly being bludgeoned by his roommate with a hammer 

On May 20, a strong putrid odor emanating from a storage container led a worker a warehouse in Las Vegas to the discovery of the decaying remains of local freelance journalist Matthew Kelemen.
Authorities said Kelemen, 56, was killed and stuffed in a box inside a storage container in Sin City. at
Investigation into the mysterious death of a Las Vegas journalist dramatically ended with the suspected killer also dying in a fiery police chase in the Utah desert. 
While the official report of cause of death has not been released, Keleman’s sister Mikki Zeferatos revealed that investigators believe he was struck from behind with a hammer. 
Kelemen’s roommate Joseph Del Rivo, 63, reportedly had hired the storage container through a luggage storage app called Bounce. Del Rivo had dropped the box with Kelemen’s remains inside at the facility on Monday Kelemen’s housemate, 63-year-old Joseph Del Rivo, dropped off the box on Monday, saying he or someone would be back to pick it up in within a week.
On Tuesday, Del Rivo reportedly hired a moving company to pick up the container. When the box was retrieved from storage, employees detected a foul odor and contacted Las Vegas Metro Police.

Utah police said they tried to pull Del Rivo over when he was caught speeding over 90mph, before he accelerated to over 140mph on the pursuit until he swerved out the way of a spike strip and crashed into a fireball. He did not survive 

As investigators zeroed in on Del Rivo, that same day the suspect was involved in an unrelated police chase when he led the Utah Highway Patrol on a daring pursuit. 
The chase ended when Del Rivo flipped his vehicle off the highway and it exploded in a fireball, killing the murder suspect hundreds of miles from where his alleged victim had been found dead hours before. 
Kelemen’s family say they heard from him shortly before his death, when he told his brother Steve that he he was getting ready to move out of his living arrangement with Joseph Del Rivo. 

Kelemen’s roommate Joseph Del Rivo and alleged killer was involved in a high-speed chase with Utah police that ended with his death in a fiery crash, same day decomposing remains of the journalist were found in a storage container

‘He’d only lived there for about six months, but he kept telling my brother what a strange guy this was,’ Zeferatos said. 
‘He said he was really uneasy living there. ‘The guy was a disgusting slob,’ were his words.’ 
Kelemen’s sister recalled her brother told his family that he planned to tell Del Rivo that he was unhappy with their dynamic, but warned them that he was ‘worried about how he’s going to react.’ 
Mikki Zeferatos said investigators told her that the Bounce app that Del Rivo allegedly used to try and transport her brother’s body is typically used by businesses to transport goods and store them short-term. 
The body was found in a box inside a large crate, which she believes may have been one of Kelemen’s guitar amplifiers. 
‘Matt played the guitar and he had amplifiers, and it was a big black box,’ she said. 

Kelemen’s family said he was a talented guitarist and believe the box he was stuffed inside was for one of his guitar amplifiers. His sister revealed ‘He’d only lived there for about six months, but he kept telling my brother what a strange guy [Del Rivo], was’

The late journalist’s family said he’d been complaining of Del Rivo’s hygiene, describing him as a ‘disgusting slob’. He was planning to inform the suspect he intended to vacate the living arrengement, but was fearful, anticipating a push back

Del Rivo used an app called Bounce, typically used by businesses to transport goods and store them short-term, in an attempt to move Kelemen’s body from a storage container, only for a warehouse employees to notice a ‘foul-smelling odor’, when the moving company arrived 

Utah authorities said the chase that ended in Del Rivo’s death unfolded around 5:45pm when a trooper saw him speeding down Interstate 70. 
Del Rivo drove up behind the squad car at ‘over 90mph’, before accelerating further when the trooper activated his sirens and tried to pull him over, according to the police report. 
Del Rivo reached speeds of over 140mph as he led the trooper on a chase for around 10 miles, while other troopers began deploying spike strips down the interstate. 
The murder suspect’s front tires were destroyed by the spike strips during the chase, however authorities said he still tried evading police and drove with flat tires for another three miles. 
The chase eventually came to a dramatic end when a second set of strip spikes were laid on the highway, and Del Rivo attempted to swerve out of the way. 
He lost control of the vehicle and flipped it off the interstate. He was he was ejected from the car before it exploded into a fireball. 

Amateur musician Kelemen, [photo], a well-known freelance reporter in the Vegas area in his day job, the day he died, had told family his roommate was a slob, which would lead to his moving out

Kelemen was a well-known freelance reporter in the Las Vegas area and had been published in a number of outlets since he moved to the city in 2003. 
He had been a staff writer at the now-closed 944 and City Life magazines, and was most recently published in Las Vegas Magazine in a preview for the Memorial Day weekend.