Inherited IRA

I inherited an IRA last year after my father passed.  He was already taking distributions prior, but he turned 73 in July and died 5 days after his birthday.  His RMD should be due by April 1 of 2026, from what I've read, however he never completed an RMD before his death.  Am I subject to the RMD or no, since he never initiated the RMD after turning 73?  TurboTax is asking if there was an RMD and I believe I should put in 0?  Thank you!