METHUEN, Mass. — A Massachusetts man suspected of strangling his ex-girlfriend as their 4-year-old son pleaded with him to stop has been captured in California.

Massachusetts State Police say 33-year-old Emilio DeLarosa, of Lawrence, was arrested in Patterson, California, on Wednesday where he was living and working under an alias. Police confirmed through fingerprints that the man they arrested was DeLarosa.

He faces a murder charge in the Sept. 12, 2016 death of 29-year-old Wanda Rosa inside her Methuen (mih-THOO’-uhn) home as their son watched.

Rosa had an active restraining order against DeLarosa when she was killed.

The suspect remains in the custody of California authorities. It’s unclear when he will be returned to Massachusetts. It could not immediately be determined if he has a lawyer who could comment.