They didn't ever explain the blood above the bed.
Pretty much all SA security systems, IME, in houses of that grade/style have panic buttons. Odder if it didn't.
The bedroom door was locked ( wasn't the lock broken?) from the inside, therefore hardly a trauma for them to open and leave the room.
Pistorius advanced toward an unknown noise.
If he was truly frightened of what/who might be down in the ensuite,in a closed toilet, surely he would have first made sure that he protect and secure his loved one.
That is after you ensured that the noise in the toilet wasn't being made by the girlfriend you had only spoken to moments earlier.
Telling Ms Steenkamp to go on to the balcony would make sense
Standing at the bedroom door, guarding the bathroom whilst she made good her escape
Giving the intruder in the toilet a chance to leave, or surrender, or live, or survive seems reasonable. If they then chose not to he could have easily used his firearm.
He had them contained.
He did not need to fire four rounds into a small closed toilet cubicle.
He had other choices.
He chose to end whomever was in the toilets life when he pulled the trigger four times.
Pulled the trigger four times.
He was the judge on that night and didn't show any mercy before killing a person for, at worst, breaking into his house.
Firing four shots into a closed toilet when there had been no threat made to Pistorius looks very much like murder to me.
Who he intended to kill makes no difference to me. He intended to kill when he had many other options open to him.