A man is in custody after two people were killed and three injured in two shootings at shopping centres in Maryland near Washington.
The man arrested, a police officer, is also wanted for the fatal shooting of his estranged wife on Thursday.
One person was killed and two more people are in hospital after being shot outside a shopping mall in Bethesda.
In Friday’s second incident, a woman was shot and killed eight miles (13 km) away shortly afterwards.
Eulalio Tordil, 62, is a police officer with the Federal Protection Services, which provides security to US government buildings.
He was arrested by tactical officers “without incident” nearby to where Friday’s second shooting took place.
Police believe he killed his estranged wife Gladys Tordil outside the High Point High School in Maryland on Thursday as she was picking up her children.
Nearby schools and hospitals were temporarily placed on lockdown on Friday as police searched for him.
The Federal Protective Service says that Mr Tordil was placed on administrative leave in March after a protective order was issued against him.
On Friday, gunfire erupted at the Westfield Mall in Bethesda then the second shooting happened at a supermarket in nearby Aspen Hill.
