Then, Sierra stole her gun and drove off in a maroon Ford Expedition, she told police. “The only way you’re getting this gun back is to shoot me,” he told her before escaping, according to the report.

She also claimed that Sierra, possibly under the influence of drugs or booze, had kicked her in the stomach..

But Machado said she later found her gun, and reported to police that it had not been stolen. Then she withdrew a petition for a restraining order.

When officers caught up with Sierra two months later, they found him with 79 grams of Ecstasy, a 9mm Smith & Wesson pistol and ammo. Sierra, police said, admitted that he had stolen the gun during a burglary a few months before.

In June 2011, a Miami-Dade judge sentenced Sierra to a year of probation, and he had to take a “values” course. By October 2011, Machado and Sierra married.

At the same time, Sierra was under police scrutiny again, first for driving as a habitual traffic offender. Then in November 2011, he was investigated by detectives investigating another burglary. At the time, he was living with Machado at the same Flagami-area house where she was later found dead.

Machado allowed officers to search the house. They found a short-barreled Rugar sawed-off rifle, a 410-gauge shotgun and ammo. He was charged with possession of a firearm by a convicted felon and his probation was revoked. Sierra later pleaded guilty and was sentenced to 364 days in a Miami-Dade jail. Sierra was released on June 22 and returned to living with Machado.

The Padrino family declined to comment Wednesday. Court records show that Padrino, in October 2011, penned a hand-written motion asking for custody of all three kids.

According to his motion, a teacher reported that Julia arrived at school with a bite mark on her arm, blaming Sierra. Machado told DCF she was “unaware” of what happened, the motion said.

“DCF at that point declared it child abuse,” Padrino wrote.

The records show that Padrino was granted temporary custody of his namesake son as DCF investigated. It was unclear with whom the girls stayed with during the investigation.

But Miami-Dade Circuit Judge Scott Bernstein, in his order denying the motion, acknowledged that DCF removed the children from the home but had since returned them.

A DCF spokeswoman acknowledged that Machado’s family had a history with the agency, but insisted case workers never removed the children.

Anyone with information can call Miami-Dade’s homicide bureau at 305-471-2400, or Miami-Dade CrimeStoppers at 305-471-TIPS.