I'm from the Chicago area, I don't think we have a serial killer here (or at least, not for these deaths). Young men getting drunk, going to pee by a body of water, stumbling in and drowning is a phenomenon all across the country. Young students tend to 1) live and congregate near the lake, because many college campuses aren't too far from the lake, and lots of recreational activities around the lake naturally; and 2) tend to get drunk more often (ah, youth). Also the video points to Daniel Sotelo but his girlfriend also drowned (likely suicide pact in that case unfortunately, you can find it here on websleuths). Many places along the shore where its super easy to fall in and why during certain weather they advise people from even walking along these paths entirely, lest the waves sweep you up.
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