Fourteen-year-old Tremaine McMillan was feeding his puppy and playing on the beach with

Fourteen-year-old Tremaine McMillan was feeding his puppy and playing on the beach with some friends when cops riding ATVs approached him and asked what he was doing. The cops said later that they saw McMillan roughhousing with another teenager, told him it was “unacceptable behavior,” and asked where his mother was. When McMillan walked away, the cops chased him on ATVs, jumped out, pinned him to the ground and arrested him. Cell phone footage taken by his mother shows the boy being thrown to the ground and pinned.  Miami-Dade cop Alvaro Zabaleta justified the use of force, saying McMillan was exhibiting threatening “body language,” which includes “clenched fists.”