A housekeeper showed up for work yesterday at 2403 Bluff St. in Boulder and discovered a scene of death inside, then rushed several blocks from the quiet suburban abode to flag down an officer, spawning a day-long murder-suicide investigation. When officers entered the home yesterday morning, they found the body of a woman near the front door and the bodies of two men upstairs--all dead from apparent gunfire. The three adults inside the home represent the second suspected murder-suicide case to shake Boulder in two months, reports the Daily Camera . Though police declined to release names, property records show Elizabeth Schwarzenbach owns the home. The Denver Post  called her listed phone number and received an answering message that said, "Phil, Liz, and Christopher are not available." Although a police spokeswoman declined to provide details, there's evidence that the killer "intentionally knew this was going to happen." Neighbors add that a family had lived in the home for a long time, and a young son returned home to live as an adult, notes 9News .