Jose Menchaca thought he and his cousin Candie Dominguez were close, he thought of her as a sister. He had always looked out for her and her children and helped them out in times of need. Unfortunately, for Jose, Candie did not return those feelings.

Sources:

Netflix: I Am A Killer, Season 6: A Mother's Choice Episodes 1 & 2

Netflix features Texas mother that dismembered family member

Woman Gets 30 Years in Prison in Dismemberment Killing – NBC 5 Dallas-Fort Worth

Candie Dominguez Testified About Dismembering & Barbecuing Cousin | Investigation Discovery

Mexikanemi - Wikipedia

Mexikanemi, or Texas Mexican Mafia – Gangs and Prison Hierarchies

The Texas Mexican Mafia, explained

Beyond the Gavel with Judge Ron Rangel Episodes 50 and 51