BROOKLYN - Police have arrested a man who they say fatally stabbed his girlfriend over the weekend before attempting to take his own life.

According to investigators, 44-year-old Alex Santiago, of Sunset Park, stabbed 31-year-old Tara Beard-Sall in the neck at 336 51st St. Saturday morning. They say he then also stabbed himself in the neck.

Beard-Sall was prounounced dead at Lutheran Medical Center. Santiago is charged with murder and remains in critical condition.