Okay, if that's the case, here's what you can do:
Get a couple pieces of 1/4" glass, 1 inch wide and about 1 inch longer than the area that has the leaks. These are now going to be the "band-aids". Scrape off the silicone you added as well as really clean the glass that will be underneath the band-aids so that it is squeaky clean. Once that is done, spread a bead of silicone around the band-aids and then press one onto the back pane of glass and one on the side pane so that they are touching each other. Make sure the band-aids extend beyond the leaking areas on both sides. Place another bead of silicone at the joint of the 2 band-aids and along the bottoms and press into the place. Allow to dry and cure fully ( usually 48 hours but follow directions on your silicone) before water testing.
What should happen if done correctly is the beads around the band-aids should spread around the whole band-aid creating an impermeable seal. You can also add a bead of silicone along the edge of the band-aid should you see any gaps in the silicone behind the glass.
If there are still leaks, it's coming from another area and dripping down to the repaired area.