2 shot inside Brooklyn apartment building

Two people were shot inside of a Brooklyn apartment building, police say.
The incident happened Tuesday night inside of the Spring Creek towers buildings on Pennsylvania Avenue around 11 p.m.
A 38-year-old man was shot in the head and 32-year-old woman was shot in the jaw and chest on the 16th floor, police say.
Both were transported to the hospital, where the man is in critical condition.
A 20-year-old man is in custody and is being questioned as a person of interest in the case, police confirm.