Yes some can be innocent and hopefully they will get out and they better get their evidence together by the time their appeal comes along but then there are people like the man, James Biela, that killed the UNR girl in 2007 and he has already been quoted saying he will appeal till he dies from natural causes or gets let out--and for a fact he did it. They have all the evidence possible. People like him shouldn't be allowed an appeal. He also is already a sex offender with multiple women on his record. All tier 3 sex offenders should be put down.
The innocent ones yes they should get out, but the ones that they have DNA evidence, witnesses, murder weapons, possible clothes or diary's or anything like that proving the person is guilty then they should not be given more than 2--fine 3. Think of it this way, first appeal you figure out what they have against you still, 2 you clear it up as much as possible figure out what else they need you to clear up, and on the third you do your best to get everything covered. The gov doesn't want to kill them, so they don't hide what the person convicted needs to prove wrong during their appeals. If they can't then that sucks, but they shouldn't help the actual guilty ones get more appeals. no way. any one that lacks the heart to hurt a women or child like the Biela guy should not be allowed appeals.
my opinion is most likely "redneck" influenced. (if any one is offended by that, most likely my definition of "redneck" and yours is different)