A fire at the Madison, New Jersey home of a pharmaceutical company executive is being investigated as an arson attack, according to authorities.

A fire at the New Jersey home of a Bayer executive, sparked exactly three months after the assassination of Brian Thompson, is being investigated as arson.

At least eight agencies are investigating a fire at a Bayer executive’s home as a possible arson, authorities said, as many companies increase security for executives following the killing of a United Healthcare CEO.