Stephen Craig Paddock, 64, had a fortune of more than $1.3million

The retired real-estate investor held his money across 14 banks

He also had a massive collection of weapons and accessories worth $62,000

The families of his 58 victims will collect an equal share of those assets

When police raided his hotel room following shooting they found $41,000 worth of weapons and firearm accessories

Paddock launched deadliest massacre in US history on October 1, 2017, killing 58 and injuring 800 shooting at a music festival from 32nd floor of hotel room

Stephen Craig Paddock, 64, released a hail of bullets from his hotel room on the 32nd floor

The Las Vegas gunman had a mysterious fortune worth more than $1.3million held in separate bank accounts at the time of his shooting spree.

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Stephen Craig Paddock, 64, also owned a shocking collection of weapons and firearm accessories, found in his home and his Mandalay Bay hotel room where he launched his attack, worth $62,000.

Las Vegas police said Paddock kept his money in 14 bank accounts and in his last two years of life he splashed out $1.5million, according to the Las Vegas Review-Journal.

Following his shooting spree on October 1, 2017, Paddock took his own life and left no will, leaving his mother to inherit his fortune.

She decided to give the money to the families of the 58 people killed in the horrific shooting.

Paddock opened fire from the 32nd floor of his hotel room at the Mandalay Bay hotel and released a hail of bullets upon a Las Vegas music festival below, killing 58 and injuring an additional 800.

After 10 months, the shooting's investigation was closed in August as police failed to determine a motive behind the lone-wolf gunman's attack.

He also had a massive collection of weapons and accessories worth $62,000. Cops found $41,000 worth of weapons in his suite at the Mandalay Bay hotel in Las Vegas from where he launched his shooting spree. His hotel room pictured above

Some of the weapons used in his October 1, 2017 shooting that killed 58 and injured 800 pictured in his hotel room above

He released a hail of bullets from his hotel room on the 32nd floor of the Mandalay Bay Hotel upon a music festival below in Las Vegas. His room pictured above with open window

It's not clear whether authorities will sell his arsenal of weapons, which is still in FBI custody.

'What will be done to them is still to be determined. We have not been able to procure them yet, and we don't know if we ever will. We just listed them so everyone would know that they are assets of the estate,' Alice Denton, the attorney working on Paddock's probate case, said.

'Due to the highly sensitive nature of the tragedy and this probate, it would be my personal preference that we petition the court at some point to destroy them. But we haven't gotten to that point yet,' she added.

His fortune estimate was revealed in a recent court filing and shows that more than $455,000 remained in Paddock's 13 bank accounts at the time of his death. The largest amount he left in one account was $102,584.51 and the smallest was $30.95.

The filing only mentioned 13 accounts but Las Vegas police previously reported he had 14 bank accounts. It's not clear why there's a discrepancy in the number of bank accounts reported.

He was retired at the time of the shooting and previously worked as a real-estate investor, property manager, accountant, and was an avid gambler.

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The investigation into the massacre closed in August without a determined motive

In the October 1, 2017 shooting 58 people were killed and 800 were injured

Police scrambled on the scene to help the injured and the close in on Paddock. He took his own life following the shooting

Two of his Mandalay Bay gaming vouchers from October 1 were also added into his wealth - one worth $29,000 and another worth $226.50.

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In his last two years he spent a whopping $1.5million on casinos, bills to credit card companies, firearms purchases, and on his girlfriend Marilou Danley who received three separate transfers from Paddock totaling to $150,000 in September 2017.

When cops raided Paddock's hotel room they found about $41,000 worth of weapons and firearm accessories. When they combed through his Reno home they found nearly $3,000 worth of weapons and firearm accessories there and another $18,000 worth or weapons and accessories in his Mesquite residence.

His homes in Reno and Mesquite, Nevada were valued together at about $758,000 and in July a judge allowed them to be sold. However no offers have been made and both residences remain on the market.

Another hearing is scheduled for next week that will reveal more details of Paddock's wealth.