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WOODBRIDGE, Va. (AP) — An Army staff sergeant assigned to the Pentagon was arrested on murder and other charges in the death of a police officer and another person, authorities said Sunday. Ronald Hamilton, 32, is being held without bond in the Prince William County Adult Detention Center on charges that include murder of a law enforcement officer. He is accused of shooting and killing Officer Ashley Guindon after she answered a domestic violence call at the Hamilton home Saturday evening. Two other officers were hospitalized with injuries. The suspect is an active duty Army staff sergeant assigned to the Joint Staff Support Center at the Pentagon, according to Cindy Your, a Defense Information Systems Agency spokeswoman based at Fort Meade, Maryland. The death of Ashley Guindon was just the latest tragedy to strike the family. Her father, David, committed suicide the day after he returned home from Iraq, where he served with the New Hampshire Air National Guard. He was buried with full military honors on Aug. 26, 2004. "He came home and took his own life," said Dorothy Guindon, Ashley's grandmother. Ashley was his only child. Ashley was born in Springfield, Massachusetts. The family later moved to Merrimack, New Hampshire, according to her grandmother. "This is really a shock to us," Dorothy Guindon said. "Ashley was such a nice person." Officer Brandon Carpenter at the county's adult detention center says Hamilton is being held without bond at the jail on charges that include murder of a law enforcement officer, first-degree murder charge, two counts of malicious assault and two counts of use of a firearm during a felony. Hamilton is scheduled to be arraigned Monday morning. Prince William County Commonwealth's Attorney Paul Ebert told The Associated Press on Sunday morning that the gunman's wife was the victim in the domestic incident. He did not provide her name. The shooting occurred Saturday evening at Hamilton's home in Woodbridge, where neighbors say he lived with his wife and their son. Police said the boy was 11 years old. Officers received a call around 5:30 p.m. Woodbridge, about 30 miles southwest of the nation's capital, about a "verbal argument," Perok said. A picture of Guindon was posted to the department's Twitter page on Friday with a tweet that read, "Welcome Officers Steven Kendall & Ashley Guindon who were sworn in today & begin their shifts this weekend. Be Safe!" It is not known if the other officer in the tweet was involved in the shooting incident. Guindon had been a county police officer a few years ago and had left and returned to the force, Corey Stewart, chairman of the Prince William County Board of Supervisors, said in a phone interview with The Associated Press on Saturday night. He did not know the exact dates of when she started and left, he said. Stewart also said there was a child in the house during the incident who was not harmed. At Inova Fairfax Hospital, where the three officers were flown by helicopter after the shooting, more than 100 patrol cars lined the roads outside early Sunday morning to stand vigil and escort Guindon's body to the medical examiner. The shooting occurred in the Lake Ridge neighborhood, on a curving street with $500,000 suburban houses with brick and siding exteriors, manicured lawns and two-car garages about a five-minute drive from the county office building. ___ AP writer Lynn Tuohy contributed from Concord, New Hampshire. ___ This story corrects the boy's age to 11.

Pentagon says employee is suspect in killings