joseph de la cruz is a gang dropout, serving nine years for attempted murder at california's san quentin state prison. and when we first met him, authorities had just discovered that he had been assaulted inside his protective custody cell. >> this morning you did come out of your cell. we did a sweep to find out how many people stayed behind, and you were discovered with injuries. and here's the medical report. >> despite obvious injuries, de la cruz refused to give correctional staff any information about the attack. >> they're trying to find out what happened. i won't tell them what happened. >> any specific individuals you know are your enemies? >> no, sir. >> how about any prison weapons offenses? >> no, sir. >> do you belong to a gang? >> no, i don't. >> i mean outside of what you're being accused of, being a victim, are you involved in any other batteries in your history? >> no. >> due to this evidence, you're deemed a threat to the safety and security of the institution, to staff, and inmates. >> escort! >> without good information about what prompted the attack and whether this attack could

. >>> california's 150-year-old san quentin state prison has been the site of much history, includinghe first ever prison performance by johnny cash. >> we actually found out that johnny cash had played at san quentin ten years prior to his more famous folsom concert. so our producer asked us to find inmate musicians, and i could hear eric phillips playing all the way down this noisy tier. >> here in san quentin phillips's guitar has grown to be his best friend. >> i really wanted to play the guitar, so i picked one up, like back in the late '80s, i bought one and just started getting my practice on and playing. you know? and just picked up from there. that became my main thing, my main passion. >> but pursuing that passion is complicated by the fact that overcrowding in san quentin has forced two men to live in cells originally designed for one. that means musicians don't always get to choose their accompaniment. but no distraction can keep phillips from his guitar. >> it provides for me a comfort in a sense that it takes me away from all this. and you know, it's like it transcends m

in the bay area there are few pieces of real estate with a more spectacular location than san quentin state prisonw more than 160 years later has more people weighing in on its age. rebuild or sell. >> instead of it being a deficit in a big negative drain, san quintin would be a revenue renovation for the state. you would get sales tax revenue and property tax revenue and attract new business and activity and income tax revenue. every year. on and on. >> 432 acres along the bay, it's close to the ferry, it's close to the bridge. the governor's office would not comment on the ideas referring us to the department of corrections. a spokeswoman for the cdc said quote there are no plans to sell the property. on our facebook page we have created a poll to ask you what you think about selling san quintin. so far 44% voted yes to sell san quintin. 56% voted no. you can weigh in by voting on our facebook page. >>> this is interesting. a san francisco man is bringing his neighborhood together by building and decorating public benches. chris duderstaff spends his own money and uses his building skills to cre

. >>> san quentin state prison sits on the edge of san francisco bay.unded by city but shrouded in a mystique that's fed by its fortress-like architecture and an infamous history, dating back to 1852. >> the first time i walked into san quentin it looked like a place time forgot. it was like a prison you see in one of these old movies. the walls were crumbling. it was very dark. very depressing. the cells were stacked on each other, one by one, packed with people. it had the most creepy feel you could possibly imagine. >> while san quentin produces images that are haunting to some, there are others who find inspiration beneath its facade. >> the most interesting part about this that i see is the weeds that's growing up out of the cracks. and it's, you know -- i always find that interesting because you got life that always seems to push up. >> when we met ronny goodman he was in the seventh year of a ten-year sentence for burglary. >> i started drawing when i was 6 or 7 years old. my cousin, he drew a picture of batman. and i was like, what is that? you

and would be a state of the art prison. >> looked at a potential sale of san quentin.ould have cost $695 million. 14 years later, that price could be more. >> for that price, could get state of the technology and resources that others can't deliver. >> if that's the view, we could trade places. >> three, in for different reasons. close to hundreds of tech companies to teach programs. >> coding, web development. i just got certified. >> people are progressive in thinking about crime and punishment than they are in other areas. we get a lot of people coming into the prison that focus on improvement. >> i was in the middle of nowhere. don't see anybody out there except for nurses, officers or workers. >> wouldn't refer us to a -- a spokeswoman said there's no plan to sell. >> office or condos, that i wouldn't agree with. >> bottom line, i'm against more housing in the bay area. >> leave it as-is. >> leave it as-is. >> home to death row and tempting to those who want to buy, but it does not appear the owner wants to sell. >> on our facebook page, asked you what you thought

state-of- the-art prison. >> potentially the land could go for a billion, approaching 2 billion. >> the governor's office would not comment on the idea of developing the land where san quentinty. some inmates don't want san quentin to move either. it's not because of the view. coming up, the reason why the location makes it easier to rehabilitate some of those inmates. >>> here's some very unusual legislation, a bill that would allow mobile bars powered by bicyclists on city streets in california, it's moving forward. take a look. this is what we're talking about. the state senate unanimously passed a bill yesterday, it would create safety standards for beer bikes. it allows 15 people to pedal at slow speed while having their beers. the riding tours often stop at bars and restaurants along their route. this is popular in sacramento and san diego. now, the legislation would allow local governments to decide if alcohol could be served on board. this now advances to the state assembly. >> it looks kind of funny. you are pedaling in one direction. >> yeah. >> burn up some calories. >> you are exercising, too. >> okay. let's check in with sal, see if the heart rate is up for com