Second Chances

Does everyone deserve a second chance? This is my question coz even though i got one i have to wonder sometimes what others think.
I was in prison for almost 20 years. I accidentally killed someone when i was 17 but unlike most who simply hate the system and try to rort it i used the opportunities given to me, finished my high school, taught myself computers and networking and have followed every rule set out for me once released. I now live with a fiance who i love dearly and her beautiful daughter who she says i am more of a father to than her own.
People ask to be friends with me on other platforms and because im honest and tell people who i am and that i made a mistake they decide they dont want to know me which is ok, i respect everyones opinions and beliefs. What i struggle with now is that even 'we dont discriminate' workplaces do exactly that when i answer the question of whether or not i have a criminal record. Do i stick to my own beliefs and tell the truth knowing that i wont likely be employed or do i not disclose and risk an employer sacking me for lying when they inevitably find out.
Everyone has their own story and i have mine too. My crime was an accident. He was a doctor, i was suicidal and wanted a specific drug that would kill me. I went too far and he died. No excuse, thats why i pleaded guilty even though my lawyer told me not to.
Now ive done my time, all i want is a way to provide for my new family but ... no one will employ a criminal.
Question remains:
Do you think everyone deserves a second chance?