Police in Puerto Rico have charged two men with first-degree murder in the killings of a retired Army sergeant and three other family members.

Police said in a statement Thursday that Christopher Sanchez Asencio and Jose Bosch Mulero, both 27, also face nearly 40 other counts.

It is unclear whether the men have attorneys. They were being held on $8 million bond each.

The victims include 67-year-old Miguel Ortiz Diaz, his wife, a 15-year-old son and his mother-in-law. They were fatally shot late Monday.

Police said a 13-year-old son survived after being stabbed and thrown off a bridge.