A family has spent over a week desperately going back and forth between Brooklyn and Queens looking for any sign of their missing 15-year-old son.

Jafet Jemmott, or Elijah as his friends call him, is a student at Midwood High School who has been missing from his home in the Rockaways.

"I believe that someone has him," Jafet's father, Federico Jemmott, told News 12 on Saturday.

Jafet's family says the last confirmed location for him was at 6 a.m. on Friday, Nov. 28. He was seen leaving their home on their security cameras.

Federico says Jafet wanted to go shopping at a thrift store in Brooklyn, and then to the Kings Plaza Mall with his friends. He says they got into an argument about it the night before.

While they assumed he had just left early to go anyway, they saw through an app that his phone only had 5% battery remaining when he left the house. By the time they tried to call him, it was too late.

As the day and night went on and they had not heard from him, they began to worry. His friends say he never showed up.

"The last conversation we had was me arguing with him about he cannot go," Federico said. "I don't even want to think about it."

The family says workers at the YMCA near their home saw someone matching his description, looking like they were about to get on the Q52 bus a little after Jafet left the house. His phone's last location was going over the Cross Bay Bridge.

"We have no idea where he was going, because he doesn't usually take the 52," Federico said.

He also told News 12, that through the phone company, were able to see he got a few messages on WhatsApp two hours before he left the house. However, they were unable to tell the full number they came from, and not what they said.

"My theory is that maybe he was speaking to someone online," Federico explained. "They probably convinced him to leave the house that day and he left."

In hopes that he was on the bus, the family spent Saturday going up and down the entire Q52 route, putting up his picture at every stop.

"You keep going through thoughts of what might have happened to him - is he alive? Is he not?" Federico said.

Federico says he is just hoping somebody recognizes his son, so that at minimum, they have an idea where he was going and it can help narrow down their search.

"Whatever argument I had with him about it, I want to ask him to forgive me for that, and I really want to tell him that I love him," Federico said.

Anybody with any information is asked to call the NYPD's Crimestoppers hotline at 1-800-577-TIPS (8477).