Heroin "likely played a role" in the recent death of Peaches Geldof, authorities said today.
An inquest revealed that the 25-year-old TV presenter and model had the drug in her system at the time of her death earlier last month.
After an initial post-mortem was inconclusive, "forensic samples were obtained and sent for examination with the results concluding there was recent use of Heroin and that the levels identified were likely to have played a role in her death," British authorities revealed today.
Geldof's mother Paula Yates also died from a heroin overdose in 2000 when Peaches was just 11 years old, and Peaches' last photo she shared on Instagram was an old photo showing Yates holding her when she was a child.
Police added that Geldof's husband Tom Cohen, after staying at his parents' home for the weekend of April 3, found her body at their home in Wrotham in Kent on Monday, April 7.
Cohen had brought the couple's two children -- Astala, 2, and Phaedra, 1 -- with him for the weekend trip, but his father, Keith Cohen, brought Phaedra back to Peaches that Sunday, April 6. Geldof's youngest child was in the home with her when she died.
"It is believed that the last contact directly between Peaches and anyone else was at 7:45 p.m. when she had a telephone conversation with a friend," Police added about that Sunday.
During the entire weekend, friends and family who spoke with Geldof, told police she "seemed her normal self and was making plans for the future" and that there was no cause for concern.
Cohen went home that Monday after he "made repeated efforts to contact his wife but had no success." After finding his wife in a spare bedroom, police and paramedics arrived and she was pronounced dead by South East Coast Ambulance Service.
The comments from friends and family who said Peaches was making plans for the future are supported by her last column she wrote for U.K.'s Mother & Baby, published days after her death.
Her final column was titled "BEING A MUM IS THE BEST THING IN MY LIFE," and she wrote about how her children were everything to her, calling her life "perfect."
Geldof's funeral took place in southern England on April 21 - two weeks after her death - with her father, The Rolling Stones' Bill Wyman and Kate Moss all coming to Davington Priory estate to pay their respects.
At the time of her death, her father Bob Geldof released a statement, that read, "We are beyond pain. She was the wildest, funniest, cleverest, wittiest and the most bonkers of all of us. Writing 'was' destroys me afresh. What a beautiful child. How is this possible that we will not see her again? How is that bearable? We loved her and will cherish her forever."