I am certain that it is him; the profile has his same unusual first and last name and it says that he works in the position he works at (team of 10 programmers), at the company, etc, and the profile picture looks like him. However, I asked him about his education ("Didn't you go to university x?", as it stated on his Linkedin) and he looked at me bewildered and stated that he did not go there (much to my surprise!). So this appears to be a fake Linkedin account and I am wondering if I should let him know to confirm. I believe a couple of other coworkers have added this profile as well.
edit: I told him and he stated that he went there for one semester. Weird how he said he didn't go there at all when I originally asked. Apparently it was a "white lie". Thanks for your answers!