In each case, the victim was in a vehicle that had broken down on the roadside in Ector County, and the suspect was a person in a white pickup truck who stopped to offer help, KOSA-TV reported.

“The Ector County Sheriff’s Office believes we have the individual responsible for the recent shootings in recent days in custody,” Sheriff Mike Giffis said on Friday night.

This person was not named. Local media reported that Griffis planned to release more details on Monday at a news conference.

Ector County includes Odessa, the site of a four-week shooting, in which seven people were killed and more than 20 others injured.

“I hate… this is happening in our hometown. Once again, ”Griffis said Friday before the suspect’s arrest.

The driver who was shot and killed had broken into a car near Interstate 20 on Thursday night, Odessa American said. He was not identified.

The other shootings took place on Tuesday over a 16-hour period. The person who was injured was shot in the abdomen, officials said.

The Metropolitan Police said in a news release the 6-year-old boy was thrown from the tenth-floor viewing platform, landing on a fifth-floor roof before he was transported to a hospital by London’s Air Ambulance. As of Monday afternoon, police said the child’s condition was critical but stable and his life was no longer in danger. He remains at a hospital with his family, who are French nationals visiting London.

“This was a truly shocking incident, and people will understandably be searching for answers,” senior investigating officer DCI John Massey said in a statement.

A 17-year-old male is held in suspicion of attempted murder over the incident, which happened just while the gallery was packed with visitors.

“We are grateful for the support of the public, some of whom detained the male arrested in the immediate aftermath of the incident,” Massey said. “He was arrested by officers very quickly afterward.”

Nancy Barnfield told the Associated Press she was at the gallery with her family when she heard a “loud bang,” and then saw a woman screaming “Where’s my son, where’s my son?”

Barnfield said that a man on the platform was restrained by other visitors until police arrived. She said he “just stood there and was quite calm.”

Authorities said they don’t believe the suspect and victim knew each other, and the incident was “being treated as an isolated event with no distinct or apparent motive.”