‘Star Trek’ alum’s cause of death revealed

Walter Koenig, best known as Pavel Chekov in the original “Star Trek” series, died aged 90. His death certificate lists cardiopulmonary arrest as the immediate cause, with chronic heart failure and acute renal failure also contributing.

Koenig died at home in North Hollywood on Sunday, with his daughter and niece by his side, according to his agency. He joined “Star Trek” in its second season and played Chekov in seven films; colleagues William Shatner and George Takei paid tribute to his connection with fans and his lasting friendship with the cast.