A man who carried out a frenzied knife attack on six people, including his wife and two young children, has been jailed for 30 years, police said.
Damian Rzeszowski armed himself with kitchen knives and killed his father-in-law Marek Gartska, 56, wife Izabela Rzeszowska, 30, daughter Kinga, five, and two-year-old son Kacper, at their Jersey home on 14 August last year.
The 31-year-old Polish builder also turned on his wife's friend, Marta De La Haye, 34, and her five-year-old daughter Julia, who were at the house for a barbecue.
More top news
The Metropolitan Police Federation, which set up the official JustGiving site, said it felt a "suitable amount" had been collected.
There is no evidence the Westminster attacker Khalid Masood was associated with so-called Islamic State or al Qaeda, the Met Police said.
Janet Ajao said in a statement: "I do not condone his actions nor support the beliefs he held that led to him committing this atrocity."