Cornwall Council has confirmed it has received a formal letter of resignation from the councillor who said disabled children should be ''put down'' to save money.
Collin Brewer made the remark in 2011. He resigned voluntarily earlier this year but was re-elected to the Wadebridge East ward in May.
After the comments were published, the council received 180 complaints and a campaign was launched to force him to resign, but the council said it did not have the power to remove Mr Brewer from his seat.
Cornwall Council has today received a letter from Collin Brewer confirming that he has formally resigned as the member for the Wadebridge East electoral division.
The resignation takes effect from July 10, the date the written confirmation was received by the council's monitoring officer.
The council's electoral service will now be making arrangements for a by-election to be held.
– Cornwall Council statement
The councillor's ill-judged and insensitive comments on disabled children demonstrated that he was clearly not fit for office.
The council is right to find him guilty. We believe he has made the right decision in stepping down.
Luckily such sickening views are rare. But almost a year on from the Paralympics disabled people tell us that public attitudes towards them remain an issue.
Disabled people are concerned about the impact of 'scrounger' rhetoric.
We need to reopen the debate on attitudes to disability.
– Richard Hawkes, chief executive of the disability charity Scope
Disgraced Cornwall councillor Collin Brewer has told ITV News West Country that he has resigned. Mr Brewer had said that disabled children should be put down. Tonight one group representing disabled people told us that while it welcomed Mr Brewer's decision, he should have gone much earlier.
Scores of people have been protesting at County Hall in Truro, calling for Cornwall councillor, Collin Brewer to resign. Councillor Brewer had previously stepped down after his comments that disabled children should be put down to save the council money.
He was re-elected this month as an independent candidate for Wadebridge East and has since said that there is a good argument for killing some disabled babies. Devon and Cornwall Police are investigating the matter. Protest organiser James Ball gives his reaction in this video.
Disabled groups will be demonstrating today (Friday 24 May) outside County Hall in Truro calling for the Cornwall councillor Colin Brewer to resign.
Mr Brewer has previously stepped down after making comments that disabled children should be put down to save the council money. He was re-elected in May as an independent candidate for Wadebridge East.