Methinks it's a Specialized Roubaix SL4 Sport:
<
https://www.specialized.com/us/en/bikes/road/roubaix-sl4-sport/118384>
One of these squirrel stickers on the top tube should be good for
bragging rights:
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https://www.google.com/search?q=squirrel+stickers&tbm=isch>
Squirrel guard? The best I could find are railroad cow catchers
adapted for a bicycle:
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https://www.google.com/search?q=bicycle+cow+catcher&tbm=isch>
Maybe some signage?
<
http://rlv.zcache.com/warning_beware_of_the_squirrels_sticker-rfb321f3a227f4d6992fa6bf2b090c97d_v9waf_8byvr_700.jpg>
Yep. Sharpened aero spokes would have been helpful to help skin, gut,
clean, and fillet the carcass. However, if all one needs is a way to
keep the squirrel out of the spokes, then covering the spokes with
chicken wire or lighter weight nylon netting, and optional squirrel
scrapers attached to the forks, should be sufficient.
I'm trying to reconstruct the accident. The pieces of the puzzle are
all there, but don't quite fit together. "The alderman flipped over
the handlebars and landed with such a severe impact that he fractured
his skull, broke his nose and knocked out a handful of teeth". If he
flipped over the handlebars, did he disconnect from the pedals and
cleats? I would have expected him to stay attached to the bicycle.
Maybe he landed like this:
<
http://media3.s-nbcnews.com/j/MSNBC/Components/Slideshows/_production/ss-094020-fallingguy/ss-090420-fallingguy-handlebars.today-ss-slide-desktop.jpg>
while still attached to the pedals? If he flipped over the handlebars
at speed, then the bicycle should have showed some paint loss or
damage from sliding across the roadway.
From the photo, judging by the position of the chain and derailleurs,
he was in high gear and possibly going rather fast.
I tried to zoom in on the bicycle computer display, but could not read
the display.