When in 1676 Robert Cotton, the younger man whom Walton treated as an adopted son, joined his own work to Walton's, creating "Walton and Cotton's Angler, " he brought to the partnership the use of angling with dry flies.

WSJ: It Has Hooked Generations of Fishermen | Izaak Walton | The Compleat Angler | By H. George Fletcher

His own story -- an immigrants' son, adopted and then disowned by one of the richest families in Perugia, suffering from fugue states and sleep-walking -- makes him one of the more interesting characters in the case.

CNN: Amanda Knox: Fascination with 'the evil female'

In 2010, an American woman caused outrage after she sent her adopted son back to Russia alone on a one-way flight, saying the boy, then 7, had violent episodes that made the family fear for its safety.

CNN: Russia's lower house approves bill to ban U.S. adoption

In 2010, an American woman sparked outrage after she sent her adopted son back to Russia alone on a one-way flight, saying the boy, then 7, had violent episodes that made her family fear for its safety.

CNN: STORY HIGHLIGHTS

Koo's son died in an accident in the 1990s and Koo, who also has two daughters, later adopted his brother's son, Koo Gwang-mo, in 2004.

FORBES: Koo Bon-Moo

The couple also has an adopted daughter, Elisa, and Magic has an older son, Andre, from a previous relationship.

NPR: Son Of Magic Johnson Talks About Being Gay

Prosecutors in Texas say they will not charge a couple whose adopted Russian son's death was ruled an accident.

BBC: Max Shatto: Texas prosecutor declines charges in death