FILE: San Francisco courthouse federal building entrance with American flag.

A San Francisco jury determined that a 55-year-old woman was guilty of murder in the 2018 stabbing death of her roommate, the San Francisco District Attorney’s Office announced Wednesday. Assistant District Attorney Melissa Demetral called the murder a “deeply disturbing and heartbreaking case.”

Lisa Gonzales was convicted of second-degree murder for using a knife to kill her roommate and trying to hide the body by stuffing it in a storage container in her basement, the DA said. 

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According to NBC Bay Area (KNTV-TV), the motive was “frustration over unpaid rent.”

Prosecutors previously said that the roommate, Margaret Mamer, was paying $400 a month to rent a room from Gonzales in San Francisco’s Mission District, NBC Bay Area reported in 2018. Prosecutors said Gonzales was frustrated after she........

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