In a one month span during the winter of 1969, the city of Cambridge, Massachusetts was set on edge.

After two violent attacks on women while they slept in their beds challenged the very sense of safety

residents thought they had in their own homes.

Nearly 50 years later, one of those cases was finally solved.

But the second very similar homicide is still waiting for answers.

The case file shows that the investigation uncovered numerous leads and tons of evidence at the time, but none of it led to an arrest.

After more than five decades, this story is long overdue for an ending. I'm Kylie Lowe and this is the case of

Aida Bean on Dark Down East. East. It was Thursday morning, February 6th, 1969, and Robert Druckman had his eyes trained on the door waiting for his

co-worker, 50-year-old Ada Bean, to arrive.

The last time anyone in the office saw her was when she left work at 5 p.m. on Tuesday that week.

Each minute that ticked by only raised his concern further, and Ada's boss began to take notice too.

Ada was a reliable employee and it didn't make sense that she would no-show two days in a row.

Finally, the boss asked Robert to stop by Ada's apartment to make sure everything was all right.

Ada's apartment building at 41 Lenayon Street in Cambridge was a stately brick building with 32 apartments and an on-site

superintendent to tend to the needs of tenants and coordinate the upkeep both

inside and out. When Robert arrived he tracked down the super, James Edwards, and explained that he was worried about Ada.

Together, they walked up to the third floor to apartment 38.

They knocked several times calling out Ada's name, but no one answered. So James used his

master key to let Robert into Ada's apartment. The bedroom, which was more of an alcove mostly open to the rest of the apartment, was visible from the front door, so he only needed to take one step inside to see Aida lying motionless on the bed and blood all over her room.

Robert immediately stepped back into the hallway and closed the door behind him.

He told the superintendent, they needed to call the police right away.

Aida Caroline Bean, born Ada Bradbury, on February 17th, 1918, grew up in Cambridge, Massachusetts,

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