Alice Gross's grieving sister Nina has called BBC's Question Time 'extremely insensitive' after politicians discussed the man being hunted over the teenager's murder.
Nina, 19, sent a Twitter message to voice her anger after the panel debated whether convicted criminals should be allowed to move across Europe's borders.
Alice's body was found in the River Brent in west London on Tuesday night and police are now searching for convicted killer Arnis Zalkalns.
The 41-year-old Latvian builder is being treated as prime suspect and went missing a short time after Alice disappeared.
Story continues after the video.
Although 14-year-old Alice's name wasn't mentioned, her death was linked via the question: "Does Freedom of Movement across EU borders include convicted criminals?"
Nina wrote on Twitter:
In a later tweet she added:
After the show went off air, the BBC Tweeted Nina an apology, saying:
Last night (Thurs), Alice's family's agony was compounded when police revealed that tests on the murdered schoolgirl failed to show how she died. The Metropolitan Police said a post-mortem examination on her body was inconclusive and further tests would be needed.
A statement by the Metropolitan Police said: "No cause of death has been given at this time and further tests are required."
Earlier, Alice's devastated parents issued a statement. Rosalind Hodgkiss and Jose Gross said: "We have been left completely devastated by the recent developments and it is difficult to comprehend that our sweet and beautiful daughter was the victim of a terrible crime.
"Why anyone would want to hurt her is something that we are struggling to come to terms with. Alice was a loving and much loved daughter and sister, a quirky live spark of a girl, beautiful inside and out.
"She was a funny companion, a loyal friend, both passionate and compassionate, and so talented with a bright future ahead of her. She brought so much joy to our family and those who knew her."
The family also urged people to help the police by bringing her killer to justice. They also thanked the local community for supporting the family in the search for Alice.
More on Parentdish: Alice Gross: Police find body in river and launch murder investigation