They were beaten with electric shock batons, clubs, chains, rubber hosing, boxing gloves, and a metal rod with a ball at the end (beech).
(They; were beaten; with electric shock batons, clubs, chains, rubber hosing, boxing gloves, and a metal rod with a ball at the end)
They
were beaten
with electric shock batons, clubs, chains, rubber hosing, boxing gloves, and a metal rod with a ball at the end