COON RAPIDS, Minn. – Three people were shot and killed at their home, one of them point-blank, in what police think was a brazen day-time robbery. There were no immediate arrests. Dead were:

> Mario Alberto Trejo Estrada, 39.

> Shannon Patricia Jungwirth, 42, his wife.

> Jorge Reyes-Jungwirth, 20, her son.

Police said surveillance video showed three men, two of them in UPS delivery uniforms, entering the house about 1:20 p.m. One was carrying a cardboard box, apparently for get-away loot. Ten minutes later the men came out and drove away in the vehicle in which they came. It was  not a UPS van. In the house, police found three bodies, each in a different room, all shot in the head. Two children, age 4 and 2, wandered into the carnage according to video. Although hysterical, the children were unharmed, police said. Video inside the house showed the Estrada couple being held at gunpoint as the intruders demanded money. Other video showed Shannon Jungwirth being shot point-blank in a bedroom. Her husband was shot in a home office. The 20-year-old son was shot just inside the front door.

Murder scene. At 94th Avenue Northwest in Coon Rapids, a suburb in Anoka County north of Minneapolis.