I think it is OK for me to accept the homicide detectives and DA's opinion at this time. It's not like I am pointing my finger at him, with no evidence. The investigators had to submit evidence to the DA, in order to bring these charges and arrest him.
Whatever they have seen and collected, forensically, led them to bring these charges.
Just because this man says that the pregnant woman he strangled to death was really the killer, it does not mean I have to believe him. His version of the story does not ring true to me, for many reasons.
His wife had just spent 6 weeks separated from him. She already told some friends and family that she was headed for separation. She had a lot of support from family and friends. She had her own income and a place to stay if she needed one.
There is no reason to believe that she would suddenly and brutally strangle those babies, over old news.
And if for some reason, she had done so, he would have called 911 immediately to try and save them. And if he saw his 2 girls were dead, he wouldn't then kill his only remaining child minutes later.
YES, my mind is pretty well closed, in terms of this scenario being thrown out there by CW.
...as was said upthread, an open mind is good, but not so open that your brains fall out...