Who is Khalid Sheikh Mohammed, the man accused of being the mastermind of the 9/11 attacks

Aug. 27, 202602:45 Understanding the key moments from Lindsay Clancy's trial Now Playing Who is Khalid Sheikh Mohammed, the man accused of being the mastermind of the 9/11 attacks UP NEXT Tate brothers ask judge to be released from Miami jail as they fight extradition to U. K. How jurors and Lindsay Clancy reacted during closing arguments Prosecution closes with argument Clancy was a 'functioning mom' who knew 'right and wrong' Judge sets 2028 trial for alleged 9/11 mastermind Father pushes for change after Meta's $18 billion settlement Testimony ends in Lindsay Clancy murder trial Montana police give update on mass shooting at family home Forensic psychiatrist highlights series of decisions Lindsay Clancy made on night of killings Federal judge rejects Ghislaine Maxwell's request to toss sex trafficking conviction Last witness in Clancy trial takes the stand Forensic psychologist testifies Lindsay Clancy is 'criminally responsible' for children's deaths Body of Massachusetts woman suspected in her police officer husband's death found Four Georgia police department employees arrested after alleged misuse of Flock cameras Judge in Lindsay Clancy case denies defense's motion for mistrial after witness brings up religion California attorney general cancels Paramount merger talks Psychiatrist clashes with Clancy attorney on definition of postpartum psychosis Hiker speaks out after violent attack Defense rests its case in Lindsay Clancy murder trial Hallie Jackson NOW Over two decades since 9/11, a date has finally been set for Khalid Sheikh Mohammad to go to trial. NBC News' Courtney Kube reports on the alleged mastermind's history and the long pre-trial proceedings. Aug. 27, 2026 Understanding the key moments from Lindsay Clancy's trial Now Playing Who is Khalid Sheikh Mohammed, the man accused of being the mastermind of the 9/11 attacks UP NEXT Tate brothers ask judge to be released from Miami jail as they fight extradition to U. K.