A Houston-area family issued a plea for help, days after someone hit their loved one and left him for dead.

The 63-year-old father remains unresponsive after the July 4 accident. 

Mary Lou Bly, the man's daughter, said she is heartbroken.  Her father Jose Mendoza, 63, was severely injured and remains hospitalized in critical condition.

The accident happened after 10 p.m. Wednesday.  Bly told Local 2 that her family became worried when her dad didn't come home that night.  The family hired a private investigator who eventually located Mendoza at Ben Taub Hospital, where he had been admitted under the name, John Doe.

"We didn't really know until Friday that he was there.  Apparently, they couldn't find his family or they couldn't locate his family," Bly said.

Police said Mendoza was on Almeda Road near Anderson in south Houston when he was hit by a vehicle traveling at a high rate of speed.  The driver didn't stop.  Mendoza was taken to Ben Taub where he's been unresponsive ever since.

"He's in critical condition.  He has severe head trauma and they don't think he's going to pull through," Bly said.

Mendoza suffered a fractured skull, a broken back, pelvis and legs.  He's also bleeding internally.

Bly said her father is a kind man who deserved better.

"This person just did that and just left him lying there on the floor, disregarded him like, as if he was nothing.  He's a dad and he's an uncle and he's a brother.  He's a husband."

Investigators said the car that hit Mendoza may have been a gold-colored Honda Accord.  If you have information, call Houston Crime Stoppers at 713-222-TIPs or the HPD Hit & Run Unit at 713-247-4065.