A San Francisco jury has convicted Lisa Gonzales of the 2018 murder of her roommate Margaret Mamer, in a gruesome case in which police found Mamer's body dismembered and decomposing in a plastic bin.

Margaret Mamer was 61 and living with then-47-year-old roommate Lisa Gonzales and a third roommate in a first-floor apartment at 255 14th Street. Gonzales, the master tenant, had lived in the apartment for decades, according to reporting by Mission Local at the time, and Mamer had just moved in the year prior, in 2017, and was paying $400 a month in rent.

Things had apparently soured between the roommates, and prosecutors said that Gonzales had told Mamer in mid-April that she needed to move out within 30 days. Co-workers of Gonzales said that she had been complaining to them about Mamer refusing to leave in mid-May, and when they offered suggestions of how to handle the situation, Mamer said, "No thanks, I’ll do it my way."

Sometime around May 15, Gonzales apparently killed Mamer, and proceeded to cut up her body with a hacksaw in the bathroom — telling the third roommate to stay out of the bathroom when she came home during her lunch hour. The roommate testified to there being "a metallic smell" in the apartment, and she heard the sound of sawing in the bathroom going on for hours, and into the next morning.

The apartment then smelled of vinegar and bleach by the end of the next day, when the roommate returned. And when she asked Gonzales where Mamer had gone, Gonzales said she left, "but not the way she wanted to." The roommate further testified that a blue plastic container she used for her dirty clothes had gone missing, and there was a hacksaw under the sink.

A "concerned citizen" apparently went to police on June 2, 2018 to tell them that Gonzales had murder and dismembered Mamer and put her in the building's basement, so apparently Gonzales had told someone else.

Mamer's friends and family also reported her missing on June 1, and police went to the apartment to speak to Gonzales.

"As they all sat in the kitchen, Ms. Gonzalez told them that she lived in the unit with a roommate and no one else," the DA's office says. "She also stated that the victim had once lived in the apartment but lied and claimed that she recently relocated to Eureka."

Police soon discovered the grisly remains after opening a storage locker in the basement, and encoutering a "pungent" odor. They said that Gonzales had "expressed reservations" about them opening the container, and they then obtained a search warrant and sound, inside, a plastic back "covered in maggots" with a “viscous” liquid bubbling out of it. Mamer's head, torso, and limbs were found inside, and had apparently been there over two weeks at that point.

An autopsy later revealed that Mamer died of multiple sharp force injuries to her head and heart, and blood spatter would later be found throughout the bathroom of the apartment.

It's not entirely clear why it took eight years for this case to go to trial, and for Gonzales to be convicted. District Attorney Brooke Jenkins blames delays by the Public Defender's Office, telling NBC Bay Area that these delays were part of their strategy in the case.

"The jury’s verdict delivers justice to the victim’s family and friends who continue to grieve and are still deeply impacted by this heinous murder,” said Jenkins in a statement. "After nearly eight years, this conviction demonstrates my office’s unwavering commitment to getting justice for victims and holding offenders accountable."

Assistant District Attorney Melissa Demetral, who argued the case in court, also thanked Mamer's friends and family f"or their strength and patience over the past eight years."

Demetral added, "While no verdict can undo this horrific act, we hope this conviction brings a measure of closure and accountability."