A neighbor who lived close to the scene and did not want his name published said police blanketed the area Thursday night as residents sought shelter indoors and lit their yards with outdoor spotlights.
When the first cruisers reached the scene Thursday evening, the man said he did not suspect anything unusual was happening.

“Actually, I looked out my window, I saw a couple of cruisers up on Post Road, and I thought someone was speeding and they pulled someone over,’’ he said when reached by phone.

He then received a call from his daughter who told him about the shooter. He said he called Greenland police, who confirmed they were handling the situation and told him to stay in his house.

“We never expected anything like this in Greenland,’’ he said of the town that was founded in 1721.

The squat, white house at 517 Post Road was apparently well known to police.

In 2010, officers went to the home to confiscate guns from Cullen Mutrie, 29, after he was arrested for domestic assault, according to the local website, Seacoastonline.com. The website cited police documents that said the officers believed Mutrie usually carried a gun and had more in his house and car. Police allegedly found liquid and powder steroids, the website said.

Three years earlier, Mutrie pleaded guilty to two misdemeanor assault charges after he was involved in a fight at the Portsmouth Gas Light Co., the website reported. Later, he reportedly withdrew his pleas, because he did not want a conviction to affect his chances of becoming a firefighter. In 2009, he pleaded guilty to a reduced charge of disorderly conduct, seacostonline.com reported....

The shooting comes as the number of police officers killed across the country has spiked in recent years. There were 72 officers killed in 2011, a 25 percent increase from the previous year and a 75 percent increase from 2008, according to the FBI, the New York Times reported this week.

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"Alleged shooter had lengthy record" by Eric Moskowitz, Maria Cramer and Katheleen Conti  |  Globe Staff, April 13, 2012