HARTFORD, Conn. — To onlookers, Monsignor Kevin Wallin’s fall from grace at his Connecticut parish was like something out of ‘‘Breaking Bad,’’ the television series about a high school chemistry teacher who becomes a methamphetamine lord.

The suspended Roman Catholic priest was arrested on federal drug charges this month for allegedly having methamphetamine mailed to him from co-conspirators in California and making more than $300,000 in drugs sales out of his apartment in Waterbury in the second half of last year.