Former HBOS chief Sir James Crosby has also announced today that he will stand down as a trustee of charity Cancer Research UK.
He said he had made the decision "with great personal sadness," but that he wanted to "put their interests firmly before mine".
He also said in the statement that he was "deeply sorry for what happened at HBOS" and that he has "always tried to act with integrity and to the best of my abilities".
More top news
The Tonight programme investigates the tough reality of life for people with learning disabilities in this country.
The al-Bakrs were devastated after Israeli airstrikes killed four boys in their family, they are now waiting for news from the boat tragedy.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.