via WJW:

CLEVELAND (WJW) -- Video released to FOX 8 News on Wednesday shows a suspect attacking his attorney in court.

It happened Tuesday morning in a Cuyahoga County Common Pleas courtroom.

David Chislton, 42, was sentenced to 47 years in prison on nearly two dozen charges.

He pleaded guilty to holding his girlfriend hostage at gunpoint, then setting the Miles Landing apartment complex in Warrensville Heights on fire in 2017, displacing dozens of families.

Moments after he was sentenced, Chislton sucker-punched his own attorney, knocking him out cold.

"I went to go turn to tell him 'I'll come and see you privately to discuss what your options are,' and before I could even get the words out, I just got sucker-punched right in the side of the head," Defense attorney Aaron Brockler said.

A Cuyahoga County spokeswoman said deputies will complete the paperwork to file new charges against Chislton related to the attack.

MORE: Video shows man attack his own attorney during sentencing for fire and standoff - WJW