I think TM is trying to justify the slaughter with the bat by saying he was trying to save MM and she in turn is trying to justify the slaughter with the paving stone by saying when TM was allegedly scrambling around for his glasses and Jason had the bat at that stage, she hit him with stone to "save" her father..... Note even when Jason had the bat (IF HE EVER DID, AFTER ALL TM SAID HE GRABBED IT PERFECTLY IN HIS HAND, BUT STILL NONE OF JASONS PRINTS ON IT), they are saying Jason only pushed TM, he never raised the bat to him...... And of course all while SM was snoring away in the basement with 4 mobile phones to hand and no 911 call made......