Billionaire Christopher Cline, who grew up in the unincorporated community of Isaban (population: 200) on Fourpole Creek that is the boundary line for five miles between Mingo and McDowell counties, was killed in a helicopter crash on Thursday, July 4 in The Bahamas, one day before his 61st birthday,

Also killed in the Abaco Islands crash was his daughter, Kameron Cline. Cline was the founder of St. Louis, Missouri-based coal mining Foresight Energy LP, a joint venture with Robert Murray’s Murray Energy Corp. His net worth is estimated at $1.9 billion.

Isaban is 66 miles from Beckley via West Virginia State Route 97. Beckley is where Cline’s grandfather began building the family fortune with a pickaxe to dig the coal.

In 1980, Cline's father bought out his partner and gave the shares to Cline, who was 21 years old and studying psychology at Marshall University.

Cline’s 205-foot (62 m) luxury yacht Mine Games has five staterooms and its own submarine.

In 2011, WVU School of Medicine and the athletic department got a $5 million donation from the Cline Family Foundation. That created the Christopher Cline Chair in Orthopaedic Surgery and helped fund a new basketball practice facility.

Later that year Marshall got a $5 million for sports medicine research.

Cline remarried in 1993 after his first wife's 1987 death from cancer, to his second wife Kelly. They divorced in 2000. Later, he dated golfer Tiger Woods’ former wife, Ellen Nordegreen.

Cline had two sons and two daughters.

He owned a 3,100 square mile mansion in North Palm Beach, Florida, and a home on 150 acres in Beckley.

Cline’s best friend, Sidney Green, died in 2002 when the roof collapsed in Cline’s mine near Wharton, West Virginia.