Translation of ciertamente

I came on time and two hours later I arrived at Tuxla Gutieres. I was always suspicious here and I never knew whom to trust. Somehow I got to the airport a few hours too early but this is better.
I do not mean to claim that they ought forget their own history, but I assert that they should forgive, not to the culprits who made the rage (that would not be possible), but the next innocent generation.
After two weeks in less developed countries it was somehow interesting to arrive here. The express shuttle from the airport took us into town in less than twenty minutes and had several station.