Video captures Missouri officer Tasering teen, leaving him brain damaged

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INDEPENDENCE, Mo. -- A former police officer in Missouri has been sentenced to four years in federal prison for an arrest that left a teenager brain damaged after the officer used his stun gun.

It happened during a traffic stop in 2014.

Bryce Masters is repeatedly heard on the dashcam video asking why the officer had stopped him and whether he was under arrest.

According to court documents, former Officer Timothy Runnels had his Taser gun deployed for about 20 seconds, the equivalent of four discharges of the stun gun.

The officer is then seen handcuffing the limp teen, dragging him, and dropping Masters face first onto the pavement.

Masters went into cardiac arrest that resulted in oxygen deprivation and brain damage.

The high school senior nearly died, according to court testimony.

During a hearing last month, Masters described how the brain damage he suffered continues to affect his sleep and memory.

Runnels pleaded guilty to federal charges that he violated Masters’ civil rights and was sentenced to four years in prison.

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