The complex at the top of the photo is the "prison" that Pablo Escobar had built for himself as part of a deal with the government. He continued to run his drug empire from here until Colombia, international pressure, passed a constitutional amendment that would allow is his extradition.
This is a bullet hole in the window of a house that belonged to Pablo Escobar's mother. Years after Pablo's death, a group of armed men came to house try to find buried money they believed is still there. The police showed up and they were killed in a shootout.