Hannah Brady, who lost her father Shaun to Covid in May 2020, has said Boris Johnson's apology about a No 10 party wasn't sincere.
Mr Johnson has admitted attending the Downing Street garden drinks during lockdown.
Ms Brady said: "I didn't believe his apology when I saw it live, I believe it even less now."
As pressure mounts on Boris Johnson over whether he attended a No 10 party during lockdown in May 2020, the BBC has spoken to families of people who died that same month.
Alejandra Godoy - who lost her mother - said she "really hates" the PM.
Lisa Wilkie filmed her brother dying in intensive care, because her mother wasn't allowed to attend.
Amanda McEgan's daughter died from cancer and spent the last months of her life unable to see friends and some family members.
