Albany police revealed details of the relationship between 28-year-old Joel Jensen and Deborah Davis as they reported arresting him at a Portland hospital on murder and other charges.

The two were involved in "an intimate relationship" beginning last fall, police said in a statement, but she ended it several weeks before the shooting on Aug. 7 at the home she shared with her husband, Tim Hardin, 56.

Police said Jensen got into an argument with Davis outside the house, and then he went inside, hitting Hardin with a .40-caliber semiautomatic handgun.

Hardin escaped to seek help at a nearby house, and after that, in the master bedroom of the house, Jensen shot Davis in the head and then himself, police said.

Neighbors had said that Jensen had lived with the couple, who were partners in an environmental contracting firm, Hardin Davis Inc., with offices in Corvallis. They also operated an Albany-based business called Buzzard Brand Ecotours, which organized tours to Hawai'i, according to a Web site.

Hardin has a doctorate in fishery biology and Davis had a doctorate in wildlife biology with experience teaching about the outdoors and a fascination with Hawai'i, according to the Web site.

Police said they arrested Jensen Saturday at Oregon Health & Science University Hospital in Portland, and said he would be held in the medical wing of the Multnomah County Jail.

Police Capt. Eric Carter told the Albany Democrat-Herald that two gunshots and voices were on a 911 recording that surfaced three days after the shootings.

Hardin had called 911, Carter said, but didn't hear the dispatcher answer and didn't think the call had gone through.

But it had, Carter said, and authorities recovered it when the Linn County 911 center made a copy of a tape of a 911 call from a neighbor.

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