With a tree saw.
On a long metal pole.
And dishwashing gloves for insulation.
Gabriel was found lying on his back, with the gloves partially melted on his hands and his pants burned away from his body. He certainly succeeded in making at least one person "suffer just like the whales and trees." Thousands of households experienced a temporary loss of power when he shorted out the power lines.
The unlucky environmental activist was flown to a local hospital and is expected to survive.