Godse did not kill Gandhi. Yes, Gandhi was assassinated but not by Godse. This answer will give you a new perspective on Gandhi's assassination.
When Gandhi was shot down, the police was also present there, and Manu and Abha had been carrying Gandhi on their shoulders when Godse came to shoot him, but surprisingly police never filed the FIR, and nothing was asked and enquired from Manu and Abha who were the eyewitnesses of Gandhi's assassination.
Gandhi had been alive after being shot down and he even asked for a glass of water but was never rushed to a hospital which was at just a shorter distance, and it could have taken 10 minutes only to reach there.
Instead, he was laid down on the ground for about 40 minutes. When the charge sheet was filed, it was found that three bullets were fired.
But Godse had shot only two shots from his Italian gun which never matched with the bullets which had assassinated Gandhi.
English newspapers, The Hindu and The New York Times had published that four bullets were fired. Postmortem was never performed on Gandhi's body.
Flights were expensive during post-independence and on 26 January 1948, four days before Gandhi's assassination, Godse landed in Delhi by AIR India.
But, nobody investigated how he was able to fly with limited resources. Even Mountbatten did not arrest him.
Gandhi's assassination gave suzerainty of India to Nehru, and nobody could match his popularity and defy his hegemony.
I repudiate from stating that he was behind the assassination and reckon that Gandhi was botched, but this case should be reopened and investigated thoroughly to know who was precisely behind all this.
Information Source:
Tracking the fourth bullet that has given new life to Mahatma Gandhi murder case
Disclose FIR and chargesheet of Mahatma Gandhi's assassination: CIC
Gaps In Mahatma Gandhi's Assassination Trial, Supreme Court Told
Nathuram Godse pulled the trigger, but who really killed Mahatma Gandhi?