A Minnesota tree trimmer allegedly killed his coworker by crushing his head with a hydraulic grapple while the two were “f—king around” and taking part in shadow puppets on the job, according to authorities.

Christopher Boone Crimmins, 34, has been hit with second-degree manslaughter fees for allegedly killing his coworker, Tyler Anthony Lynch, 26, in a bloody mishap during a tree-trimming job in Apple Valley on Aug. 20, according to the Dakota County Attorney’s Office.

Christopher Boone Crimmins, 34, has been charged with manslaughter for fatally crushing his coworker, Tyler Anthony Lynch, with a hydraulic grapple while taking part in shadow puppets on the job. Dakota County Jail

Crimmins was on prime of a increase and working it from his seat as Lynch, of Royalton, was selecting up tree branches on the floor, according to the felony grievance.

The pair were “f—king around” and saw that the daylight had forged a shadow of the grapple and the sufferer onto the avenue, Crimmins instructed officers, per the grievance.

Crimmins then jokingly maneuvered the hydraulic grapple to make it seem as though the shadow of the grapple was grabbing Lynch’s shadow — but was not paying consideration to the truth that the grapple had inched toward his coworker’s head.

Lynch, 26, was discovered mendacity on the floor with a great amount of blood and a “significant injury” to his head. Facebook/Tyler Lynch

Crimmins then closed the grapple, horrifically crushing Lynch’s head, the submitting said.

Lynch was discovered by officers mendacity on the floor with a great amount of blood pooled around his physique and “a significant injury” to his head.

He was later pronounced lifeless, authorities said.

Lynch regularly posted photos and movies of his tree trimming jobs and inspirational quotes on Facebook.

Crimmins said he and Lynch were “f—king around” when the horrific accident occurred. Facebook/Tyler Lynch

“I can tell we lost one of the best. RIP buddy,” one consumer wrote under photos of his haul of lumber in the back of a truck.

Crimmins was cuffed and booked in the Dakota County Jail, where he has been held on $40,000 bail with out circumstances, or $20,000 with circumstances, prosecutors said.

He is slated to return to courtroom on Sept. 10.