The old man in a black cap is the former headmaster of the school.

那个带着黑色便帽的老人是这个学校的前任校长。

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In his trademark black cap, Mr Shanibah is a tall, gentle-looking man, nicknamed "Grande" for his size.

戴着那标志性的黑帽子，Shanibah先生看起来是个高大而且有教养的男子，因为他的身形而被伙伴们起了个外号“大个子”。

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Sunglasses covered his eyes, and he wore a cheap black knit winter cap. Embroidered across the front of it was the word “Rock” in English.

我走到一个体格魁梧的家伙对面坐下，他戴着太阳镜，脸和脖子上围着传统的阿拉伯头巾，头上戴着一顶便宜的黑色的冬天戴的针织绒帽，帽子的前面绣有一个英文单词“Rock”。

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Wolfowitz sat down next to a slight middle-aged man in a fraying denim jacket and a black wool cap, who said that his name was Bedir Yasa and that until recently he had been living on the streets.

NEWYORKER: The Next Crusade

Tsarnaev, who had appeared in surveillance photos wearing a black cap and was identified as Suspect No. 1, died days after the April 15 bombing, which killed three people and injured more than 260 others.

NPR: Uncle Arranging Boston Bomb Suspect's Burial Rites

He is also described as wearing a black beanie hat during two of the assaults and a black skip cap in one of them.

BBC: Kersland Street