She said he seemed friendly but also quiet and stuck to himself.
He was trying to get his life back on track, she said.
"I only saw him yesterday - he walked outside to get a parcel."
She didn't hear anything and the first she knew something was amiss was when she noticed an armed policeman standing on her property and was told the victim had been stabbed.
By lunch time about five police cars had gathered at Jasmine Pl in Cambridge.