Sheriff: 1993 Florida murder solved -- the son did it

MULBERRY, Fla. (AP) -- Investigators say they have solved the 1993 slaying of a pregnant Polk County woman with the arrest of her son.

Polk County sheriff's investigators said Friday they have arrested Christopher Shane Knight, who was 19 when his 39-year-old mother Jahala Watson was stabbed to death. He remains jailed on second-degree murder and manslaughter charges.

Sheriff Grady Judd said the two constantly fought. Judd said a witness said the pair was arguing on June 20, 1993. Judd said Knight ordered the witness from the home, which quickly went quiet. Watson was never seen alive again. Her body was found two days later along a road.

The Ledger of Lakeland reports that shortly after the killing, Knight told a reporter he wanted to know who killed his mother.