One of the country's 10 most wanted criminals, sought by Montgomery County police on a charge of assault with intent to murder, was arrested last week in New York.

Ronald Turney Williams, 38, is wanted by Montgomery police in connection with a shooting in Potomac on June 4. Police allege that Williams kicked down the door of a house in the 10700 block of Gainsborough Ave., confronted a 19-year-old youth in a bedroom and shot him.

The youth was superficially wounded and the gunman escaped. Cpl. Philip B. Caswell of the Montgomery police said police do not know of any motive for the shooting.

"But there will probably be other related charges when the case comes before a grand jury," he said yesterday.

Police in West Virginia, where Williams was serving a life sentence for killing a policeman during a prison break, are seeking him on charges of murder, kidnap and escape. According to Assistant U.S. Attorney Jerry Lynch, it is likely to be the first of five states of try him.

Arizona officials want Williams on a murder charge, police in both Charleston, W. Va., and Roanoke, Va., want him on charges of robbery, and he is wanted in Wayne Township, N.J., to face charges of burglary.

Special agent Joe A. Valiquette of the FBI's New York office said yesterday that Williams may also be charged with assaulting a federal officer.

All this means that it is likely to be a long time before Williams faces charges in Montgomery County. Said Caswell: "There are a thousand other people who want him."

Williams was shot four times when FBI agents surprised him in a Manhattan hotel last week. He is being held at Riker's Island in New York until extradition hearings on June 29.