a "plagarist," usually.
Fratricide is the killing of ones brother or sister So you would call him a( Murderer )
call police and charge them
A person who commits a robbery is known as a robber or a thief.
A person who commits suicide is also called a suicide. Or..."dead" is probably a good word for it. :)
Her
call 911
a tort.
A tortfeasor A tortfeasor
Plagierism is when you copy's somebody else words or work and you don't cite them you just copy everything they say like it's your own word
Treason is punishable by death
An avoutrer is an obsolete word for someone who commits adultery.
An evil person is often referred to as a villain or a wrongdoer, someone who intentionally commits harmful or immoral actions towards others without remorse or regard for consequences.