Faustino Valdez, her boyfriend of six years, was the last to see her Tuesday morning at the home the couple shared on Aurora Avenue.
He told News 8 that she got up just like it was any other regular day.
"She … took a shower, got ready and put her clothes on -- her work uniform -- her makeup just like a normal day," he said. "(She) gave me a kiss goodbye and she just got up and just left to work."
Valdez added, "It's not like her to just do this -- leave the kids like that."
He walked away too distraught to continue the interview.
Marisol has three children of her own. Valdez said she also considers his daughter as her own child.
Her mother says one of Marisol's daughters texted her about 9:30 a.m. that Tuesday, but never got a reply. Her phone may have been turned off.