Alleged threats made against police officers and the Middlesex District Attorney may land a Malden man in even more legal trouble this week.

According to authorities, Sean Kearney, 36, was already under indictment in connection with a 2010 Everett armed robbery. He allegedly sent two letters from his jail cell in February, coordinating an effort to pay off witnesses to prevent them from testifying at his trial.

Police later allegedly intercepted those letters. Advised of the apprehension, Kearney reportedly made a number of threats in a jailhouse call recorded by police. "I'm gonna kill a cop, I'm gonna kill one of these cops here, maybe all of them, as many as I can possibly get my hands on," he allegedly said.