The family says the last time they were together, she received a call from an unknown person and left hurriedly and has not returned since.
According to the sister, Peris Andika, Josephine appeared in her dream and gave a hint of what had happened to her.
“She came to me in a dream and asked why I was telling people about her but I couldn’t speak because it was a dream. She started beating me and that’s how I found myself out of the house,” she said on Citizen TV.
She said Josephine then took her to a hill where she showed her a group of five men in a circle and said it was where she was before disappearing.
Another family member, Everlyne Namai said she also appeared to her in a dream saying that she was outside in the cold, inside water.
She said Josephine again appeared in her dream on Thursday asking why they had left her in the cold.
"She said I am out here in the cold, come and get me, I'm in water." When Thursday came again, she came and said "My sister, why did you leave me in the cold? I have been stabbed in the thighs and neck. Ask my sister where there is garbage, and come to me there," Namai narrated what Owino said in the dream.
It was then that the family decided to find young men who could help them with the search.
The search, however, led to the discovery of the bodies that currently stand at 11 even as the search continues today.
On Saturday, President William Ruto directed the Directorate of Criminal Investigations to speed up the investigation into the deaths of Kenyans whose bodies were found in a quarry in Mukuru, Nairobi.
The President assured that those behind mysterious killings in Nairobi will be held to account.
Ruto said the government does not condone extrajudicial killings.
"All those involved in this heinous act of killing young Kenyans will face the full force of the law," Ruto said.
According to Ruto, the killings witnessed in Mukuru were against the constitution and the human rights of any country.
KPLC - 2 Western counties to experience power interruptions