Two Pennsylvania men have been charged in the murder of four young men whose disappearances last week led to a widespread search of a vast farm and other sites north of Philadelphia.

The four men were reported missing over a two-day period starting on July 5. On Thursday, the son of the farm’s owner, Cosmo DiNardo, 20, who had been named a “person of interest” in the case, confessed to killing them, his lawyer said.

Mr. DiNardo was charged Friday with four counts each of homicide, conspiracy to commit homicide and abuse of a corpse, according to court documents filed in Bucks County Court of Common Pleas. Sean M. Kratz, 20, identified in court papers as a cousin of Mr. DiNardo, was charged with one count each of criminal homicide and conspiracy to commit criminal homicide, along with a host of related charges, including abuse of a corpse, the documents show.

What we know

• The four young men disappeared last week in Bucks County, a Philadelphia suburb where new construction meets large estates. Jimi Taro Patrick, 19, was last seen around 6 p.m. on July 5 in Newtown Township, Pa.