If there us a place in the Bible where it implicity explicitly states killing is ok. I really want to read it.

Did you read any of the verses linked in the article?

God gave mankind the authority to carry out capital punishment for the most evil crimes. That's confirmed actually from Genesis all the way through Romans in the New Testament.

There are 2 types of condemnation. There's condemnation here on the Earth by human governments when people commit crimes. But there's also eternal condemnation for sinners, which by the way is every person. The Gospel message is that while we are all sinners, if we confess our sins, ask for forgiveness, accept Jesus' death on the cross as payment for our sins, and believe in His resurrection from the grave then God forgives us and spares us from eternity in hell and instead we get to join Him in heaven.

Now the murderer sitting on death row may accept Jesus, or he may not, and that determines his eternal destiny. In either case he still receives capital punishment here on Earth by the government, and God finds no fault in the government for carrying it out. That's justice.

You can't have a theology that's all love and no wrath. In that case, anyone can live however they please and there's no penalties. Likewise, you can't have a theology that's all wrath and no love, because then you end up like the Pharisees with their hundreds of rules for living and no grace. There has to be a balance, because God shows a balance between the two. But in that balance, God is clear and unwavering: capital punishment is just and appropriate for the most evil crimes.

If you want a real-world example of why we need the death penalty look at Anders Breivik in Norway https://en.wikipedia.org/wiki/Anders_Behring_Breivik He detonated a van in Oslo killing 8 people and then dressed like a police officer to take a ferry to an island where there was a camp for liberal youth where he spent over an hour gunning down 69 kids. 319 people were injured. Some of the kids actually ran toward him thinking he was a police officer there to help them. He was given Norway's maximum sentence of 21 years in prison with the possibility of parole after 10 years. This man killed 77 people because he didn't like their politics, and his actions affected the lives of all of his victims' friends and family. He has shown no remorse for what he has done. And while he did not get paroled after 10 years, he will be a free man around the age of 55 to live out the rest of his life.

I believe men such as this should receive the death penalty, and it would be acceptable to God. But Norway abolished that punishment.