Keishla Rodríguez Ortiz was found floating in the San José Lagoon in May 2021 after former boxer Félix Verdejo Sánchez injected her with drugs and threw her from a bridge.
The actor asked for visitation with his daughter in response to Bijou Phillips' request for full custody when she filed for divorce after Masterson was sentenced to 30 years in prison for rape.
Danny Serafini was arrested along with Samantha Scott in Nevada for the 2021 Northern California murder of 70-year-old Robert Gary Spohr and the attempted murder of 68-year-old Wendy Wood.
“We believe that based on our lengthy and detailed investigation that it is appropriate for a grand jury in New Mexico to make a decision on whether the case should proceed,” special prosecutor Kari Morrissey said.
The body of Brown's 73-year-old mother, Myrtle Brown, was found in a creek in September after family members were unable to locate the pair, who lived together.
Phillips filed a petition in Santa Barbara Superior Court to end her nearly 12-year marriage to Masterson, days after he was sentenced to 30 years to life in prison for two rape convictions.
The move comes after several women made allegations of sexual assault against the comedian-turned-influencer, with YouTube joining a growing list of organizations distancing themselves from him.
Masterson's That ’70s Show costars Mila Kunis and Ashton Kutcher wrote letters to the judge in support of him, but have since apologized following a backlash.