Nadia Tkachuk rented a room to suspect Arnis Zalkalns without knowing about his murderous past.
It wasn’t until Zalkalns’ roomate- an ex-policeman- revealed the truth to Nadia.
She told The Sunday People: “His friend said he killed his wife before coming to England. I was shaking. I was surprised.”
"He didn’t look like a killer. He looked like a good person.”
She added: “If I knew straight away I would definitely have refused for him to live under my roof.”
A shocked Nadia then confronted Zalkalns about his crime, to which he said: “It was an accident. My wife was beating our child.
"I tried to protect the child and accidentally I hit her and I killed her like that.”
Zalkalns is now the prime suspect in an investigation to the disappearance of 14-year-old school girl Alice Gross, who was last seen on August 28 walking along a London canal.
Zalkalns is seen cycling behind her just minutes later.
Nadia said: “I feel so sorry for Alice’s parents. I have two daughters myself so I could cry for Alice’s parents.
"It is a terrible for family if you lose someone close to your heart..”