帮忙翻译三个句子，谢谢

1`He confessed to have committed murder, but because I was diagnosed with mental illness from a death.
2`He confessed to have committed murder, was diagnosed with mental illness because of death from catastrophic floods that washed away many houses, placed the entire town in ruins
3`He confessed to have committed murder, was diagnosed with mental illness because of death from catastrophic floods that washed away many houses, placed the entire town in ruins no matter how you felt frustrated, you do not scratch non-compliance to the anger spread in the name of customer relations department that the staff who is inhumane

He admitted that he did the crime, but was spared from death because he was diagnosed of mental illness.

The catastrophic flood destroyed a lot of houses. The town was made into rubble by that flood.

No matter how frustrated you were, it is against the law for you to vent all your frustration on that client.