Man sought in killing of girlfriend, son in Jersey City

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

JERSEY CITY, N.J. – Police are seeking a 26-year-old man accused of killing his girlfriend and their young son in Jersey City Heights.

Jose Ronald Santos-Alvarez, 26, is wanted for the murders of his former girlfriend and their son, prosecutor's office said. (Photo: Hudson County Prosecutor's Office)

Jose Ronald Santos-Alvarez, 26, is wanted for the murders of his former girlfriend and their son, prosecutor's office said. (Photo: Hudson County Prosecutor's Office)

The Hudson County Prosecutor's Office said in a press release Monday Jose Ronald Santos-Alvarez is wanted for the deaths of Monika M. Potoczniak, age 27, and their son Christopher R. Potoczniak, age 4.

Both victims were found unconscious in their second floor apartment located on Lincoln Street in Jersey City last Wednesday, officials said. They were taken to a local hospital where they were both pronounced dead.

The Medical Examiner determined Monika M. Potoczniak was strangled to death and Christopher was suffocated. Both deaths were ruled as homicides.

An arrest warrant was issued for Santos-Alvarez on Saturday, charging him with two counts of murder, officials said.

Santos-Alvarez should not be approached and is considered to be dangerous.

Anyone with information as to Santos-Alvarez's whereabouts is asked to call the Hudson County Prosecutor's Office Homicide Unit at (201) 915-1345 or by email at hcpotips@hcpo.org.