Shelly Titchener disappeared the day before Valentine's Day, and her husband reported her missing two days later. At 10:30 a.m. Wednesday, law enforcement officers from two agencies, Brisbane and Fremont, came to the home and declared it an active crime scene.
The 57-year-old wife and mother has been missing for a week and a half.
"The husband came up to our house and asked us if we've seen her or anything," said neighbor Phil Tandecki.
Brisbane police say Paul Titchener told investigators that Shelly left her cellphone and laptop at home and that she had a history of bipolar disorder and depression.
WATCH VIDEO: Fishermen find woman's torso near Fremont's Dumbarton Pier
"Two days ago him and his son, they were putting up these signs," said Tandecki.
On Wednesday, those missing signs were covered by crime scene tape. After serving a search warrant at the home, investigators spent much of their time in the back yard. They swabbed a white Chevrolet. The vehicle, with Shelly's picture in the windshield, is registered to her husband.
On Sunday night, 30 miles from Brisbane, fishermen found a woman's torso near Dumbarton Pier in Fremont.
Then Tuesday night investigators searched for additional body parts, and the coroner's office picked up what appeared to be more remains around 8 p.m. Sources say it was a woman's extremity.
Also on Tuesday just after 9 p.m., there were reports of a Bay Bridge jumper. The San Francisco Coroner's Office confirms the victim was identified through fingerprints as 62-year-old Paul Titchener Sr. of Brisbane, Shelly's husband.
Neighbors were unaware of these developments as Fremont police continued to investigate.
Tandecki described talking to Paul. He said, "He was kind of broke down about it."
As for the human remains found 30 miles away, Tandecki said, "I don't know what to say about that, I hope it's not her."
Tandecki said he never heard the couple fighting, but other neighbors said there was tension when Paul, who had left the home, then for a time moved back in.
Neighbors say they've heard shouting come from the house over the years. DeeDee Porter lives next door and was one of the last people to see both Titcheners alive.
"None of us can construct that scenario in our heads where that makes sense. I mean they were nice neighbors and he was a nice, respectful, quiet guy," she said.
WATCH VIDEO: Investigators search for clues where woman's body part as found
"I'm devastated, I'm shocked," said Shelly's brother, Scott Carmichael.
Carmichael says he felt suspicious about his brother-in-law and thought Paul was possibly holding back information. Still, Carmichael holds onto some hope Shelly could be out there. DNA evidence will likely be used to make that determination.
In a statement released Wednesday night, Fremont police said that while they cannot confirm the body is that of Shelly, they cannot rule it out. They also confirmed that her husband died after jumping off the Bay Bridge and that he was not named as a suspect, but was a person of interest.
The Titcheners leave behind two sons. On Wednesday evening, one of them wrote on Facebook, "My mother Shelly Titchener and father Paul Titchener have recently passed. I hope that you will all respect the privacy of my family and I. Thank you to everyone who supported us in the search for my mother."
"We have a very strong feeling that it is in fact Shelly, the missing person out of Brisbane, but until coroner says positively identified we can't say 100 percent it is her," Fremont Police Department spokesperson Geneva Bosques said.
The coroner will likely need to do DNA testing on the torso because police said they haven't collected anything else that would help them positively identify the person.
A lot has happened since Sunday on 2 cases now converging. Let's review. Feb 13 mom Shelly Titchener disappears, husband Paul reports (p.1)— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
..disappearance 2 days later. Sun night, fishermen find female torso 30 miles from Shelly's Brisbane home near Dumbarton Pier (p.2)— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
..investigators find more remains last night. Shortly thereafter, Shelly's husband jumps off Bay Bridge. (p. 3)— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
... This am Fremont PD serves warrant at Brisbane home/breaks down door/swabs husband's car. And tonight an active scene still .. (p.4)— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
...w/ Fremont PD saying they cannot confirm nor rule out that remains are missing Shelly Titchener & husband was person of interest (p.5)— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
Fremont PD just now in release re: Paul Titchener suicide: Paul was not named as a suspect but was a person of interest— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
Fremont PD just now in release: while we cannot confirm body found is Shelly Titchener, we also cannot rule it out— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
ID on human remains found near Dumbarton Pier not yet released to media. #OnlyOn7 new at 5 - reaction from someone closest to Shelly— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
.@abc7newsBayArea confirmed Shelly Titchener's husband jumped from Bay Bridge last night. Fremont investigators at home today— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
Crime scene tape covered this missing person poster for most of the day a block from Titchener home pic.twitter.com/1UzeyMWRcQ— Melanie Woodrow (@MelanieWoodrow) February 25, 2016
Only on 7 - Fremont investigators swab truck belonging to husband of missing Brisbane woman. pic.twitter.com/KT8cEjEMIt— Melanie Woodrow (@MelanieWoodrow) February 25, 2016