2:33 - Why is that brother not using an NWT?
It was a moving video and the JW featured in it is likely a very kind man, but the Watchtower Society as an Organisation do not do nearly as much to help Prisoners as several Christian and even secular charities.
In a sermon in Church recently I heard a Vicar tell a story about doing missionary work in Zambia, which involved visiting a horrendously overcrowded prison, he found out whilst he was there that around 100 prisoners were in the Prison for failing to pay a £50 Visa fee. He wrote to some Churches back in England to ask for help, and raised the £5000 he needed to pay those fees and free the Prisoners (which was not conditional on any conversion.) I thought, what would a JW have done in that situation? He couldn't have done anything, if he'd wrote to the Congregation the elders would have to reprimand him, and if he wrote to the Society he'd certainly be rebuffed.
Similarly, most Christian charities that do Prison ministry also have programs to help prisoners find housing/work and generally reintegrate into Society post-prison. A kind JW might take it upon themselves to help one of their prison studies in this way but if he/she hasn't got the means to do so, what will the Society or local congregation do to help? Again, nothing.