The woman’s mother became concerned that she had not heard from her daughter, 41, or grandson, 10, and visited their home in Lichtenberg, eastern Berlin.
But when she arrived at the tower block she found the two bodies and her daughter’s partner. The 46-year-old man then ran to the balcony and fell to his death in front of the grandmother.
Police said it appeared that he had strangled the woman and her son to death.
Officers closed off the area around the apartments and a murder squad is investigating the deaths of the mother and son.
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