A Glassboro man was sentenced yesterday to 25 years in prison for killing a witness in an attempted-murder case, authorities said.

Larry Graves, 29, admitted last year that he strangled Charles Mosely, 64, in 1997 to prevent him from testifying against a friend. Before the slaying, Graves had shared a cell with Zarick L. Rose, who was awaiting trail on a 1995 charge of attempting to murder Mosely during a robbery.

Inside the jailhouse, Rose asked Graves to kill Mosely - a Franklinville used-car dealer and father of 10 - in return for $2,000 and a supply of drugs. Four days after his release from jail, Graves killed Mosely. The charges against Rose were thrown out shortly after, said Bernie Weisenfield, spokesman for the Gloucester County prosecutor's office.

A thumbprint at the scene led detectives to Graves. After repeated questioning during the following eight years, Graves acknowledged his role in the slaying and implicated his former cellmate. Rose, 35, received a 45-year sentence last year after being found guilty of complicity to commit murder and other counts. Graves pleaded guilty to aggravated manslaughter.

For his cooperation, charges of murder, felony murder, conspiracy, burglary and other charges were dismissed. - Sam Wood