A violent struggle caught on camera is the focus of a murder trial in Massachusetts.
Fifty-six-year-old Howard Penn is accused of first-degree murder in the shooting death of a co-worker at Rooming House in Worcester.
Video showed a Penn beating 52-year-old Lloyd Worster with his cane, with the struggle escalating after the man pulled out his gun, shooting and killing the beaten man.
Penn's defense admits Penn killed Worster, but says it was a case of self-defense, claiming Penn feared for his life after he says Worster told him "I should have killed you, next time I will."
During closing arguments, the prosecution told the jury his was not a case of self-defense - rather, it was a case of murder.
In the video, the men struggle and Worster forces Penn to the ground and starts kicking him in the corner.
The fight ends, and Penn is back on his feet as Worster starts to leave the Rooming House office with the defendant's cane.
At that point, the video show Penn taking a gun out of his bag and shooting Worster in the back, killing him.
The victim's daughter declined comment today. As for the jurors, they will return to deliberations Monday. They were sent home after a transformer in the courthouse blew, leaving them without lights or AC.