Iris' sister Marg Wogas told ABC 15 that her brother-in-law had been battling depression.
"I received a text yesterday around 2.52pm," Wogas told ABC 15.
After that, they said, he returned to an apartment and they heard two to three more gunshots from inside the home.
Ross, who was known to his fans by his middle name Milan, used his experience of losing a dramatic amount of weight in his 20s to launch career as a vegan chef through writing and videos.
The family made emotional pleas for clues to help solve the case.
Euri Jenkins' attorney told the station he's shocked to be sitting in jail and that he's innocent.
"Two messages, first one saying "I just killed Iris and the kids.
The second message was "with a gun." "I knew that man was very unstable. I didn't know it was this dark." Ross, who attacked an officer multiple times, is now being held without bail at Maricopa County jail on three counts of first-degree murder and more than a dozen counts of aggravated assault on an officer.
No matter what the road looked like, I followed my heart and stuck with it growing my business," Jenkins wrote.
According to a court document obtained by AZCentral, witnesses watched Ross shoot Iris as she was running away from him.
After shooting her, he allegedly returned to his apartment.
Euri Jenkins is one of two suspects held in the killing of Makeva.
20-year-old Joevan Joseph has been in jail since his arrest in August.