Richard Forsyth poses for a photo near his home in TKTK, Missouri, Thursday, June 1, 2023. Mr. Forystyh's brother, Dr. John Forsyth was found dead as a result of a gunshot wound in Bear Lake Reservoir, Arkansas on Tuesday. EXCLUSIVE DETAILS: The family of slain Missouri ER doctor and crypto-millionaire John Forsyth say they have been kept completely "in the dark" aside from a mystifying statement from law enforcement. "The Missouri state police told us, ‘We know more than you think we do,’" Forsyth's brother Richard Forsyth told Fox News Digital. "We are mad we are being kept so in the dark."The doctor’s body was found with a gunshot wound floating in an Arkansas lake in the Ozarks nine days after he vanished, with the family saying he had told them in the past he "might be in danger." Although detectives interviewed Richard for two hours Tuesday, they did not share any details, he said.Forsyth disappeared May 21 after wrapping up a hospital shift in Cassville, Missouri, a town of 3,100.MISSING MISSOURI DOCTOR FOUND DEAD IN LAKE FROM GUNSHOT AFTER PREVIOUS KIDNAPPING REVEALEDThe cryptic statement that has led to more questions than answers appears to be in keeping with the secretive life of the eccentric ER physician, whose bizarre demise echoes a plot line from the Netflix crime thriller "Ozark."The beloved ER physician's fiancée, a nurse he worked with, is eight months pregnant with the couple’s first child, a source told Fox News Digital, which is withholding her name to protect her privacy.The Forsyth family poses for a photograph in Springfield, Missouri.