I actually think the title should be: Enjoy a day of exploration of Medellin: walk the streets, taste the food, Escobar if you wish, customize it.
Mario was simply fantastic. He picks us up, say, ok, Escobar, graffiti in Commune 13, etc. We told him, we did Commune 13 yesterday, without any hesitation, "ok, then we will go", and he described a tour that included Escobar but a new route in the city. We were with him from 9:00 am until about 5:00 pm, and every minute was wonderful. We really felt like we were seeing the city, in fact, we never saw any tourist until we made stops near a famous square that we were happy to visit. We posed with school children for photos (forgot to get a copy from Mario), we at a local restaurants where I can almost guarantee you they rarely, if at all saw American seniors, we chatted with the surviving driver of Escobar, etc. If you just want to feel like you really have seen the city, take a separate tour of Commune 13, the hire Mario to really spend the day showing you Medellin. Mario: the greatest, and his English skills are perfect.