Hello Ann,
Even though we do not know one another, I felt moved to add my name to all the others here who've written expressing sorrow at the tragic loss of your much-loved younger brother. Please be assured that the prayers of each and every one of us are with you in your grief.
I realise it's small consolation at this difficult time, but the Church to which I belong holds a Healing Group which meets regularly to offer prayer on behalf of people who have been bereaved and/or are suffering distress of any kind, and I've taken the liberty of mentioning your name for inclusion in their ongoing Prayer List. I do hope you don't mind.
May God always be with you and your loved ones in the days ahead.
Most sincerely,
Arthur.