SAN ANTONIO -

A military jury at Lackland AFB Saturday sentenced a drill sergeant to 20 years in prison for sex crimes against female trainees.

That jury opted for a lesser sentence for Staff Sgt. Luis Walker.  Friday night they convicted him on rape, sexual assault and other sex crimes on female trainees.

It's part of a widespread sex scandal at Lackland involving drill sergeants and female trainees that has implicated a dozen instructors and so far charged six.

Walker cried as he pleaded with the jury to not to give him the maximum life prison.

He said he has two sons and would like to have a future with them.

After deliberating the jury came back with the 20 year term.

Earlier the judge combined some cases so Walker faced 20 counts rather than the 28 the jury convicted him on.

But that did not affect the sentence Walker faced.

Walker is one of 12 Lackland instructors investigated for sexual misconduct. He faced the most serious charges among the six instructors who have been charged.

Prosecutors accused Walker of raping one female trainee and sexually assaulting or having inappropriate sexual or personal contact with nine others.

The jury agreed, and decided he must serve 20 years for his crimes.