One of the victims in Tuesday’s shooting at a southwest valley grocery tried to reconnect with his estranged teenage sons just hours before the killings.

Victor Frias Rosas and his wife, Amanda Frias Rosas, were killed while shopping at the Smith’s at 9750 South Maryland Parkway, where they both worked.

Police said 43-year-old Alejandro Estrada — Amanda Frias Rosas’ ex-boyfriend and the father of her two children — stalked the couple beforehand and opened fire as they turned down aisle four. Estrada was armed with a handgun, an automatic rifle, and a lot of ammunition, according to police.

Estrada appeared in court briefly on Thursday afternoon for a separate case in which he faces home invasion, burglary and gun charges.…