Friends said Fletcher would sometimes exacerbate arguments. In one case, she teased Carrier about losing his driver's license after he was arrested in 2004 on a charge of driving while intoxicated.

Carrier's cousin, Alan, said Fletcher told him she was afraid of Carrier. Yet another acquaintance characterized Fletcher as a "narcissistic-type person'' who would agitate Carrier.

Several of those providing statements to police said Fletcher was constantly worried that Carrier might bring guns into the house. She repeatedly told him and their friends that he could not live with her if there were any guns. When he hunted, she insisted he not bring the guns he used back to her home. However, several friends and acquaintances said Carrier had talked about or shown them guns he said he owned.

According to the report, Fletcher said she regularly checked the house for weapons, but was never able to get into Carrier's locked tool chests, where police eventually found additional guns and gun parts during the investigation into Lavery's death.

After a layoff from a Rocky Hill construction company in the summer of 2004, Carrier became more despondent and depressed and his drinking became even heavier, according to testimony.

Fletcher told police Carrier was drinking six to 12 beers a day on weekdays and 30 cans of beer on the weekends. She said he did nothing to find a job or to get help with his depression. The two had stopped talking in September 2004, Fletcher said.

The report reaffirms that it was Ryan Fletcher who, unknown to Mary Fletcher, called police about 10:20 p.m. Dec. 30 because she was worried that Carrier had again beaten up her mother. He had.

According to the report, as Fletcher was drinking a beer and cleaning the bedroom, she and Carrier began fighting over who had broken the leg on a bedroom table. Fletcher said she knew Carrier had been drinking but did not know how much. During the fight he hit her, cutting her face.

"Let's clean you up,'' Carrier said to Fletcher as he led her to the kitchen by the hand, according to Fletcher's account.

Fletcher told police that Carrier said he hit her in retaliation; he claimed she had hit him first. Too embarrassed to go to a neighbor's door to ask for help, Fletcher waited for Carrier to go to the basement, and then called her daughter to come and get her.

As Fletcher waited in the driveway for her daughter, Lavery arrived. It was not the officer's first time to Fletcher's house, according to the report. The previous month, Lavery was the officer who responded after Fletcher called police to complain about a bill left at her house from a power-washing service for work she had not ordered. The company had mistakenly washed her home, instead of nearby 57 Crestview Drive.

As Lavery was talking with Fletcher outside the house on Dec. 30, his backup, Officer Laurence DeSimone, arrived. Fletcher told police about the fight, and shook her head "no'' when asked if there were any weapons in the house, according to testimony from DeSimone.

After searching the first floor for Carrier, Lavery, 47, headed down the basement stairs. Carrier was waiting with an automatic rifle. As Lavery neared the bottom of the staircase, Carrier opened fire. Lavery was hit by an unknown number of bullets in the abdomen, chest, groin, legs and shoulders. DeSimone, who was at the top of the stairs, radioed for help. He and Fletcher, who was on the main floor, fled the house just four minutes after Lavery had arrived. A lengthy police standoff ensued as police tried to get to Lavery and police and family members tried to talk Carrier into surrendering.

After Carrier was struck in the shoulder by a police sniper's bullet at about 8 a.m. Dec. 31, 2004, the report states, it is believed that he committed suicide with a single bullet to the head.