. >> reporter: michael raymo wetzel, father of six, also among the dead, spokes person for theamily speak out today. >> they are very overwhelmed. ere are six kids that have lost their father. the kids are just finding out today and they're trying to be really cautious. >> reporter: tonight we're learning more details about who did this and the elaborate preparations that went into this massacre massacre. >> it was an event training in the morning, transitionining to a christmas party, lun in the afternoon. >> reporter: 28-year-old american-born syed rizwan farook attended a holiday luncheon for the county health department where he was employed as a health inspector. he reportedly left the gathering angry and returned later with >> it seems hard to believe all of this was spontaneo -- >> we said yesterday there appears to be a degree of planning that went into this. >> reporter: at 11:00 a.m., a couple entered the conference room wearing tactical vests and armed with rifles. >> need assist now, i have sho fired. >> we believee the suspects when they entered fired between 65 and 75 rounds