Which character's nickname is the suspect tracking sledgehammer?

"Suspect Tracking" sledgehammer is Xiao's nickname, because Xiao's fighting capacity is too strong, and his action is like a hammer, so it is described as "hammer", so the nickname Xiao sledgehammer was born.

In the play, Sameen Shaw, an Iranian female agent of the former government, was responsible for $ NUMBER of the related work. Later, she was suppressed by the government and faked her death with the help of Finch and Reese. Now I work with Finch and Reese. Xiao is a violent "super thug" with high fighting capacity. His natural character defects make him heartless, unloved and sad.

"People of Interest /POI" is a crime TV series produced by American CBS TV. The plot structure is jointly created by jonathan nolan and Jeffrey Jacob Abrams, starring J·J· Ka Vizer, michael emerson, Taraji P hansen, sarah shahi, kevin chapman and Amy Ike. The play tells the story of a presumed dead former CIA agent and a mysterious billionaire who unite to stop crime in a unique way.