PORTLAND, Maine — A 74-year-old Maine man was charged in the shooting deaths of two tenants inside an apartment he rented out at his home, and detectives are investigating whether the violence is connected to a landlord-tenant dispute, State Police said Sunday.

James Pak was arrested at about 10 p.m. Saturday following a standoff at his suburban neighborhood home in Biddeford, about 15 miles south of Portland, police said. He is charged with two counts of murder in the deaths of Derrick Thompson, 19, and Alivia Welch, 18. Welch and Thompson married in July, according to both their Facebook profiles.