A Fairfax Country police officer yesterday testified that a Luray, Va., man, accused of murdering his sister-in-law admitted that he stuffed clothing down the woman's throat, raped her, "stomped" her and stabbed her to death.

Because the murder involved rape, the defendants, Bruce M. Rogers, 22, may be the first person in Fairfax County to the be tried under Virginia's new death penalty law passed this year by the state legislature.

Fairfax County Commonwealth's Attorney Robert F. Horan said yesterday following a preliminary hearing that, although the offense occurred June 5 and the death penalty law did not go into effect until July 1, a recent U.S. Supreme Court decision involving a Florida murder may allow him to seek a capital murder indictment against Rogers.

Rogers case will be held for county grand jury action next month.

Horan said he will study the Supreme Court cases before deciding if he will ask for an indictment on charges that could carry the death penalty if Rogers is convicted.

The statue allows the death penalty in convictions of murder involving rape, robbery, kidnaping or [WORD ILLEGIBLE] murder of a prison guard or murder by a hired killer.

Fairfax homicide investigator Carl F. Pfeiff testified that he arrived at 5906 Banning PL. Burke, where Karen Sue Ensall was found died.

He said he had questioned Rogers and that Roges told him "he had taken her panties off and shoved them down her throat, he stabbed her, he had sexual intercourse with her . . . and stomped on her face."

When Rogers was questioned at 5:20 a.m. June 6, about two hours after Ensall's dealth. Rogers had a knife and blood on his clothes, Pfeiff testified.