Okay if she went there under her own power and her car was still at the apartment complex, why would she have taken the baby in the car seat? There have been no reports that a stroller was found. A car seat (if that's what it is) would be in a car that was used to take them to the creek. I think they were dead when they left the house. Who has a car seat? Someone with a baby. The average random murderer doesn't haul a car seat around.
I don't think there was a carseat anywhere ... and walking through the park, to the bridge, with a 10 year old and a six month old in a sling wouldn't be a big undertaking.
In the reports of a "baby harness", does that mean a "sling"? A baby sling and a Bible, set beside the creek, a pile of clothes and what ... a woman that would never go anywhere, even though she has a 10 year old son and her husband worked 10 hour days, without telling him what she was doing and where she was going ... to the extent that his arriving home after work, where she was not home, was cause to notify police?
A mother of two, aged 10 and 6 months, found face down in a frigid 12-18 inch deep creek ... children drowned nearby ... apparently committed suicide?
What was the name of that guy whose wife lived in a remote trailer with five pre-school children, born pretty much a year apart, and she was supposed to home school them? She drowned them in the bathtub ... several boys and then a daughter? She was convicted of murder based on an argument that she was imitating a Law and Order program ... but then it turned out that there never was a program like that.
That was a really creepy situation. The husband had a good income as a government scientist, but his family lived like gypsies in the woods ... his wife went nuts, murdered the children, was put away and he re-married. She wasn't able to commit suicide in the bathtub, even though she was religious and had just murdered all of the children.