The San Jose community of Thousand Oaks was rocked by the murder of a beloved neighbor in her own home last week. No arrest has been made in the case, but police have zeroed in on one potential suspect.

The San Jose Police Department spent the weekend searching for clues in the case of 59-year-old Bambi Larson, found dead in her home Thursday after co-workers were concerned that she hadn’t shown up for work. KGO is reporting the police have identified a “person of interest” in what they are now ruling a murder, and have stepped up patrols and surveillance as that individual is still at large.

According to CBS SF, police have found evidence indicating that Larson’s death did indeed involve foul play. CBS's Kiet Do reported Sunday night that “various cameras showed a suspicious man walking around the neighborhood around 4:30 a.m., who was constantly looking over his shoulder on the day Larson’s body was discovered.”

That day would have been last Thursday, when Larson’s adult son and one of her co-workers came to her Knollfield Way home to check in on her. They found Larson’s deceased body in her bedroom, which has shocked the upscale suburb. “It's scary, very scary for us,” neighbor Nitin Miranda told ABC 7. “Pretty safe neighborhood, otherwise hardly any crime around. It's disturbing."  

Police have been understandably tight-lipped about their findings. But a neighbor watching the investigation tells CBS SF he saw police remove a grey sweater from Larson’s trash and bagged it as evidence. “It looked like it could’ve been stained,” neighbor Laundo Williams said of the sweater. “It could’ve been water. It was the type of material where if it got wet, it’d look a little darker.”

Larson’s LinkedIn profile lists her as a systems manager at Ariosa Diagnostics, a subsidiary of the multinational pharmaceutical company Roche. She is reportedly survived by her two adult children. San Jose police say they have not yet identified a motive in the killing.

Related: Second Suspect In Suitcase Murder Tries To Plead Guilty In Court Outburst [SFist]