Police have arrested a Staten Island man in the slayings of a woman and her two young sons.

Police say Shane Walker was arrested Sunday on murder, manslaughter, arson and criminal possession of a weapon charges. Information on his lawyer wasn't immediately available.

Police say 37-year-old Alla Ausheva and her two boys, 2-year-old Ivan Walker and 3-year-old Elia Walker, were found dead in the smoke-filled house in the South Beach neighborhood Saturday morning. The medical examiner's office is to determine their causes of death.

Crime scene tape cordons off an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. Police say they have a suspect in custody. (Irene SpezzamonteStaten Island Advance via AP)

Crime scene tape cordons off an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. Police say they have a suspect in custody. (Irene SpezzamonteStaten Island Advance via AP)

Police say the suspect is believed to be the children's father and lived with them in the home. He was taken into custody after he was found walking along the Brooklyn Queens Expressway earlier Saturday.

Police say the man and woman were both in the military.

Crime scene tape cordons off an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. (Irene SpezzamonteStaten Island Advance via AP)

Crime scene tape cordons off an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. (Irene SpezzamonteStaten Island Advance via AP)

Police secure an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. Police say they have a suspect in custody. (Irene SpezzamonteStaten Island Advance via AP)

Police secure an area in the South Beach section of the Staten Island borough of New York, Saturday, June 22, 2019, after a woman and two small children were found dead in a neighborhood home. Police say a 37-year-old woman and two boys ages 2 and 3 were found dead Saturday morning. The victims' names have not been released. Police say they have a suspect in custody. (Irene SpezzamonteStaten Island Advance via AP)