robber; plunderer
Refers to a person who forcibly takes property, often in a dramatic or violent context. Slightly formal or literary.
強奪者が銀行から現金を奪った。
The robber stole cash from the bank.
その強奪者は美術館から絵を強奪した。
The plunderer looted the painting from the museum.
Compound of 強奪 (plunder, robbery) and 者 (person). The exact historical derivation is uncertain, but the kanji components are conventionally associated with the meaning.