A New Jersey man allegedly shot and killed his wife using bullets specially designed to inflict greater damage, the Star-Ledger reports.

On Thursday, police arrested 74-year-old Alexander Jacobs in connection with the shooting death of his wife, Lilia Jacobs.

According to the report, a woman had called police shortly after 2 p.m. that day reporting a dispute between her father and stepmother. The caller said her stepmother was lying on a floor by a fireplace while her father was inside the residence in East Hanover Township, just east of Newark.

Police officers who arrived at the scene found Lilia Jacobs in the home’s living room, where she was lying on the floor with a head injury. Investigators discovered a shell casing near her.

Officers reportedly observed Alexander Jacobs pacing back and forth in the house. He eventually exited holding a handgun that contained hollow point bullets, which expand upon entry into a victim so as to cause more damage and increase lethality, according to the newspaper.

Jacobs approached the officers, who ordered him to drop the gun. He complied. Police read him his Miranda rights and he was taken into custody.

Court records obtained by the newspaper show Alexander Jacobs then told an officer, “I know I killed my wife.”

Later, when Morris County detectives attempted to interview Jacobs, he repeated: “I understand and I accept that I killed my wife.”

Jacobs then invoked his rights and declined to answer any questions, an affidavit states.

Jacobs is being held in the Morris County Jail. In addition to murder, he has been charged with possessing a weapon for an unlawful purpose and possessing prohibited devices.

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