The SFPD is investigating two separate homicides last night in Lower Pacific Heights and the Outer Mission.

According to the SFPD, a 56-year-old woman was stabbed to death at about 9:25pm on the 2000 block of Sutter, between Steiner and Fillmore, in Lower Pac Heights.

And just before midnight, officers found two people suffering from gunshot wounds at Mission and Geneva in the Outer Mission. Both victims—a man age 20-25 and an 18-year-old woman—were transferred to the hospital, where he died and she was treated for non-life-threatening injuries.

The SFPD reports that arrests were made in both cases.

A 39-year-old man was taken into custody in connection with the stabbing.

And three suspects—a 17-year-old girl, 18-year-old woman and 20-year-old man—were detained in connection with the shooting.