Phillip Sherriff's widow Jane tells London Tonight's Ronke Phillips it was really hard sitting through the Ashley Charles court case. She said she experienced a "roller coaster of emotions".
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Mr Charles died in hospital after he was chased by a police officer into a shop in Dalston and restrained.
The Labour mayor will seek a second term in City Hall.
The Apprentice boss tweeted a picture of the sports team, which had been edited to include a picture of handbags and sunglasses.