If convicted, Nick could face life in prison without the possibility of parole or even the death penalty.
Phoebe Grace Armstrong, 28, was arrested on Tuesday, Dec. 16, and charged with murder.
Cesar Mikeas Padilla Aguilar, 38, fatally shot his ex girlfriend's new boyfriend, 35-year-old Matthew Bodsford, after Bodsford confronted Aguilar over sexually inappropriate remarks he had made about the woman's daughters.
As part of her plea deal, 28-year-old Jacqueline Marie Stone was sentenced to serve 10 years in prison and register as a sex offender.
Court records indicate the killings likely occurred in the early morning hours, long before the devastating scene was uncovered around 3:30 p.m.
Reiner is currently being held without bail and was reportedly placed on suicide watch in the aftermath of his arrest.
Shelley "Kat" Martin, 62, was charged with murder over the death of 40-year-old Emilio Ghanem, who vanished in 2023. Martin and her husband, Darryl Martin, were also charged with murder over the death of 4-year-old Timothy Thomas in 2010.
Sydnee Graf, 36, was arrested over explicit conversations she had with a student under 12 years of age, during which she allegedly discussed oral sex with the boy.
Jesus Ayala, 20, received a sentence of 20 years to life while 18-year-old Jzamir Keys was sentenced to 18 years to life over the death of 66-year-old Andreas Probst.
Loureiro was immediately taken to the hospital, but he later died from his injuries early Tuesday morning.
Sajid and his son, Naveed, 24, are suspected of having carried out the attack during a Hanukkah celebration on Sunday, killing 15 people and leaving dozens of others injured.
Their daughter Romy, 27, who lives across the street, then went to check on them herself and called emergency services after discovering a horrifying scene inside the home.
Nick was arrested at a Los Angeles subway station in Exposition Park, about 15 miles from his parents' Brentwood home.
Austen Medek, 39, has been charged with murder in the death of his wife, 41-year-old Michaela Medek.
Kenneth Edwards Jr., 50, has been charged with lewd or lascivious activity with a victim age 12 to 16, and using a computer to seduce, solicit, or lure a child.