FBI inquiry into Lori Vallow’s former husband’s death amid reports that brother Alex Cox threatened him

Tylee Ryan’s father died of a reported heart attack in 2018. Now it seems that authorities may be questioning the circumstances of his death

The FBI has asked police in Phoenix for information about the death of Lori Vallow’s former husband Joseph Ryan.

Vallow’s children, 17-year-old Tylee Ryan and 7-year-old Joshua “JJ” Vallow, have not been seen since September. Vallow has been married multiple times, and in 2004 divorced Tylee’s father Joseph Ryan. In 2018, Ryan reportedly died of a heart attack.

AZCentral.com reports that the FBI inquired about Ryan’s death with Phoenix police last month. It is unclear if the investigation is ongoing, and police sources said the federal agency has not given them any action items at this time.

According to court documents obtained by AZCentral.com, Vallow and Ryan fought over custody of Tylee, and Ryan accused Vallow of violating their custody agreement by refusing to let him see his daughter.

As CrimeOnline previously reported, Vallow’s brother Alex Cox was convicted of threatening Ryan with a stun gun. The circumstances surrounding the incident are not known. In July, Cox admitted to fatally shooting Vallow’s then-husband Charles Vallow, claiming self-defense. Cox died in December of still-unknown causes, and authorities have not yet released details about his death.

Cox was also with Vallow, JJ, and Tylee during a visit to Yellowstone National Park on September 8. Tylee Ryan has not been seen since then, and authorities have asked anyone who visited the park on that date to provide photos and video captured that day.

Read more:

‘Red flag’ missed? Police share new details about Tammy Daybell’s death, ‘paintball gun’ attack days before

Idaho judge SLASHES Lori Vallow’s bail as children remain missing; will ‘Doomsday’ mom walk out of jail today?

Chad Daybell made ‘significant’ increase to wife’s life insurance policy DAYS before her sudden death; son says dad has ‘done some bad things’: Report 

‘Lori what the $#!# happened’: Text messages show ‘cult’ mom Lori Vallow refusing to answer questions about husband Charles Vallow’s death; leaves his sons in the dark for DAYS

Missing Tylee Ryan’s aunt says Lori Vallow waited WEEKS to inform relatives of Joseph Ryan’s sudden death

‘Cult’ mom Lori Vallow didn’t attend husband’s funeral; son says he doesn’t believe story about Charles Vallow’s death and fears for his own safety

Click here to read all of CrimeOnline’s coverage of the Vallow case. 

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