Can Father's Love and GPS Find Missing Baby Gabriel Johnson?

by Edecio Martinez

TEMPE, Ariz. (CBS/KPHO/AP) More than a month after baby Gabriel Johnson disappeared in Texas, his father is taking matters into his own hands.

The 8-month-old's dad, Logan McQueary, met with investigators Monday, and handed over all text messages and recorded conversations he had with the boy's mother Elizabeth Johnson, who sent him a terrifying text saying she had killed the boy.

But it's not clear that she did. Johnson also told police and CBS affiliate KPHO that she gave the child to strangers in San Antonio during a road trip that started in Arizona and ended in Miami. When police picked her up in Florida Dec. 30, 2009, Gabriel was nowhere to be found.

Now McQueary is planning to retrace Johnson's steps to find his missing son. He says he will try to recreate the GPS directions he believes Johnson followed from Tempe to San Antonio and plans to stop at hotels along the route searching for anyone who saw Johnson or his son.

Johnson's car was found in Tempe and police believe she took a bus to Miami.

Johnson has been indicted on charges of kidnapping, child abuse and custodial interference.

She has refused to help police find her son