This from Larry Shapiro:

Buffalo Grove firefighters were called to 271 Lincoln Terrace this afternoon (5/21/15) after a worker that was cutting a tree apparently fell from a crane roughly 30-40 feet above a detached garage. After riding up with the crane ball to an upper tree limb, he tied off the large branch to the crane and the fell somehow and landed on the garage roof below.

Firefighters packed the patient on a backboard and into a stokes basket before lowering him to the ground for transport to an area hospital.

Here are a few images from the scene and a brief video.

firemen rescue a tree worker that fell onto a roof

Larry Shapiro photo

site of workplace accident after a tree worker fell

Larry Shapiro photo

firemen remove an injured worker in a stokes basket

Larry Shapiro photo

firemen rescue a tree worker that fell onto a roof

Larry Shapiro photo

firemen place patient with backboard onto a gurney

Larry Shapiro photo

site of workplace accident after a tree worker fell

Larry Shapiro photo

a tree worker climbs a tree

A different worker resumes the job after the firefighters leave. Larry Shapiro photo

More images are at shapirophotography.net