Absolutely terrible news.
However, in the interests of learning something, and irritated by the handful of knee-jerk declarations / lazy assumptions that it's normally fathers who kill their children, this is apparently not the case.
Data from 33 countries distinguishing the perpetrators of parental homicides of children under the age of 18 years showed that mothers committed just over half of all parental homicides (median 54.7%, IQR 36.7–68.8); in high-income countries, the median percentage was 44.4% (IQR 36.7–66.7), in the East Asia and Pacific region, 64.6% (IQR 59.0–69.3), in the Americas, 15.4% (IQR 13.3–17.4), in Africa, 88.6% (IQR 71.1–100.0), in low-income and middle-income Europe, 60.4% (IQR 45.8–75.0) and in the Mediterranean region, 7.4% (IQR 0.0–14.8).
bmjpaedsopen.bmj.com/content/1/1/e000112