By Tracy Connor, Staff Writer, NBC News

A second teenager was arrested Monday in the beating death of an 88-year-old World War II veteran in Spokane, WA, and the people who helped him hide out were also busted.

Kenan Adams-Kinard, 16, was charged with first-degree murder for the slaying of 88-year-old Delbert Belton, a crime that horrified people across the country. Another 16-year-old, Demetruis Glenn, was arrested last week and charged as an adult.

"They did a horrendous thing and they need to pay the consequences," said the victim's daughter-in-law, Barbara Belton.

"They just kept hitting and hitting him," she said. "He was an 88-year-old man. Even if they wanted his money and he didn't want to give it to them, they didn't need to do that."

Belton, who survived being shot in Okinawa during the war, was in his car in the parking lot outside his Eagles Lodge when he was attacked on Wednesday night.

He was found wedged between the two front seats, and doctors told his family he lost too much blood to survive.

Glenn turned himself in, but Adams-Kinard remained in hiding for four days until "dozens of tips" led cops to his hideout, Spokane police said.

"Several other people with him have been arrested for rendering criminal assistance," police said in a statement.