Dead Jogger's Husband: I Cheated

The 12-page affidavit goes into extensive detail about Cooper's love for his daughters, asserting that he feeds the girls "well-balanced meals" and even gave his wife a day off on the weekends -- known by the family as "mommy's day off" -- during which he'd care for kids.

Cooper recites the children's schedule meticulously, making a point of what an involved father he was to the girls.

The husband adds that while his children have been taken away from him since his wife's death, the separation papers drafted before the murder made clear that he was to share custody of the daughters.

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"Nancy and her attorney agreed that I was a fit and proper parent to have the care, custody and control of the children," Cooper says in the affidavit.

The husband paints an ugly picture of his wife's family, who will petition for permanent custody of the girls in a hearing on Friday. He claims that his mother-in-law, Donna Rentz, has "fallen asleep at the wheel on at least two occasions" and has had "as many as seven major car accidents."

Alice Stubbs, the lawyer representing Nancy Cooper's family, declined to comment on Brad Cooper's affidavit when called by ABCNews.com.

In an affidavit filed Wednesday by Jessica Adam, one of Nancy Cooper's best friends who reported the jogger missing last week, Brad Cooper is described as "socially inept, selfish, moody and unpredictable."

In a 911 call released earlier this week, Adam was heard telling the operator, "Maybe her husband has done something."

Adam elaborates on her suspicion in the affidavit, saying that she was "immediately concerned that Brad had done something to her" when her friend failed to show up at her house for a prearranged get together.

Adam also alleges that Cooper had been recording his wife's telephone conversations, "repeatedly denied money to Nancy," and was "emotionally callous and verbally cruel" to his wife throughout their marriage.

But in his own affidavit, Cooper, who has stayed out of the spotlight throughout the investigation and was absent even from his wife's memorial service, addresses these allegations head-on, claiming that had it not been for his wife's unruly spending habits, a strict family budget would never have been needed.