The sentencing hearing for Jonathan Hearn, the former Redlands firefighter who admitted gunning down the husband of his lover, Sabrina Limon, has been moved to Thursday, a day ahead of the date previously scheduled.

The move was made to accommodate the travel schedule of the family of victim Robert Limon, prosecutor Eric Smith said during Tuesday's brief hearing in the case. He said the family will speak at sentencing, and he expects the entire sentencing hearing to last about an hour.

Hearn, 27, admitted to fatally shooting Robert Limon at a Burlington Northern Santa Fe railway office in Tehachapi on Aug. 17, 2014. 

He faces 25 years and four months in prison after pleading no contest to voluntary manslaughter, among other charges. He also testified in the trial of Sabrina Limon, with whom he said he plotted Robert Limon's death after carrying on a lengthy affair.

Sabrina Limon, 38, was convicted in October of crimes including murder, and faces a life term in prison. Her sentencing hearing is set for Feb. 16.