Man robbed, killed mom-in-law, but why?

Before killing her Sunday, police said Steven Estremera took something from his mother-in-law, with whom he lived, but investigators aren't revealing what that something is until they find it.

Estremera, also known as Estevan Gonzalez, was charged late last night with murder, robbery, theft and related offenses in connection with the death of his mother-in-law, 66-year-old Marion Frew, according to police

Authorities were called to the house on Weikel Street near Tioga in Port Richmond by Estremera, 34, around 10 a.m. Sunday morning. Frew was found dead at the bottom of a staircase in the home with a stab wound to her neck. Estremera, Frew, Frew's daughter and her two grandchildren all lived in the house. The boys, ages 9 and 11, were asleep upstairs when the murder occurred but their mother was not at home, police said.

Investigators said the murder was in connection with something Estremera took from Frew and hid somewhere outside of the house they shared. Police are still looking for that "something," which they declined to disclose until they find it.

Read DN staffer Jan Ransom's piece on the crime here.