"They had been fighting and at some point she injured him," said Det. Stribling.
And in her last conversation with Athena, Aisha says she actually warned her sister to be careful after she'd taken her son and gone to spend a weekend house-hunting with Yusef.
"What I said to her was 'I'm calling to check on you, to make sure Yusef didn't put you in a grave somewhere,'" said Aisha. "That was how fearful I was of her spending any time with him."
Aisha would never see nor or hear from her little sister again.
"So I speak to her that Friday. She doesn't come home that Monday and her phone's dead," said Aisha. "At this point, I'm sick, scared."
More than three days would go by before Aisha says she finally received a text message from Yusef asking if she'd seen Athena, and telling her she'd stormed out of his house at 3 a.m. the night she arrived in May 2017.
"Not only does he say he doesn't know where she is, he said that she's been gone since Friday, and now it's Tuesday," said Aisha.
And detectives tell Crime Watch Daily that Yusef admitted that on the night Athena disappeared, she'd made a shocking discovery that led her to believe he was cheating on her.
"She happened to get ahold of his phone and saw some text messages from another female," said Sgt. Herbert. "And apparently there was an argument. The next thing she walks out of the house, never to be heard from or seen again."
Yusef denied having anything to do with her disappearance.
And Stribling says there was no evidence of foul play at Yusef's house.
"It did not appear that a physical altercation or a crime had happened," said Stribling.
Do police consider Yusef a person of interest?
"Absolutely," said Herbert. "Because he was the last one who spoke to Athena and he shared a relationship with her and has a child with her."
Are there any other persons of interest right now in this case police would want to identify publicly?
"No, not at this time," said Herbert.
Police and family don't believe Athena Curry would disappear of her own volition, abandoning the child she loved so dearly.
"She had an extremely strong bond with King, the son. I have a hard time believing she would just leave him," said Stribling.
"Not plausible," said sister Aisha.
"She may walk away from the relationship, but she wouldn't have walked away from King," said Herbert.
Aisha, who has adopted King, who is now seven years ago, can only hope and pray that by some miracle Athena will be found alive and reunited with her son.
"Every time I get him dressed, I always say, 'Athena, I want you to be proud,'" said Aisha.
Crime Watch Daily did try multiple times to talk to Yusef Ibn Mujahid about Athena Curry's disappearance. The first time we were in Atlanta, he was in jail after three separate incidents involving two other girlfriends. He has since been charged with multiple felony counts, including aggravated assault and strangulation. He has pleaded not guilty to those charges and was recently released on bond.