A 55-year-old Iowa woman's final 911 call and evidence from barking dogs at a kennel helped investigators solve her murder case, according to authorities.

Angela Prichard, a wife and mother, called 911 to report she was in danger before her death. Her last words during that emergency call provided investigators with their first clue to identify her killer, police said.

Surveillance footage from a kennel location captured the sound of dogs barking, which proved crucial to the investigation. The audio evidence helped authorities determine the timing of when Prichard's estranged husband arrived at the location where he waited for her.

The case highlights how multiple forms of evidence, including the victim's own emergency call and ambient sounds recorded on surveillance equipment, can provide critical information in murder investigations. Authorities used these pieces of evidence to build their case against the estranged husband.

The investigation demonstrates the importance of 911 recordings and surveillance audio in criminal cases, even when visual evidence may be limited.