at the hands of sb

at the hands of sb AND at sb's hands (because of someone's actions) — со стороны, от рук, по вине
If you suffer at the hands of someone, they hurt you or treat you badly. At the hands of sb describes an event or consequence that happened under the control of a certain person or caused by a certain person.

Example 1: The victim died at the hands of the murderer.

Example 2: How many people have died at the hands of terrorist organizations? (CALD)

Example 3: Two young people who were under arrest have died at the hands of the police.

.
.