He died in October 1970 under mysterious circumstances. His body was found in the Neris River weeks after he went missing. During the autopsy, no water was found in his lungs. According to the official report of his death, it lists a suicide. Since the circumstances around his death were mysterious, it was rumored that the KGB tried to recruit him as an informer since he was traveling into the US, and he refused, leading him to be killed.[2] It was also claimed that he was seen meeting with agents during the same summer. Some sources also claim that any documents from the KGB archives were wiped leading to the suspicion of their involvement in the circumstances of his death. He was buried on 20 November 1970 in Sunny cemetery in Vilnius.