Click it to make it bigger, it wont go bigger for some odd reason. Celegorm I had to use your name lol. It was the only good one that worked. And Celegorm sounds like a nice warrior name. Silk Road. Took 6 hours to download for only 3000 MB. I am lvl 8. Soon to be... I dont know. It is fun. Try it.
First of all, did you go to Dandy Dental? You need to go there first to grab the Telekinesis plasmid.
After you do that you can go to Steinman's Surgery place and when you walk in, on the upper left corner theres a small balcony and a Nitro Splicer should come out and start chucking grenades at you. DO NOT KILL HIM YET!
Use Telekinesis and grab one of the grenades and chuck it at the rubble blocking your way. One grenade should be enough, unless you didn't aim right or something. Then you may kill the Splicer afterwards.