The 6,000 was tax withholding like from your paychecks. You will enter the full gross amount as income then the withholding is subtracted from the tax.
I'm not sure about the losses. They might be one of the deductions that are suspended. See Deductions that have been suspended for 2018
https://ttlc.intuit.com/questions/4482873-which-federal-tax-deductions-have-been-suspended-by-tax-re...
FAQ on 2018 changes https://ttlc.intuit.com/questions/4482394-how-will-tax-reform-affect-my-2018-federal-tax-return
And the losses are an Itemized Deduction. Many people will be taking the Standard Deduction now. So will he have enough to Itemize?
For 2018 the standard deduction amounts are:
Single 12,000 + 1,600 for 65 and over or blind
HOH 18,000 + 1,600 for 65 and over or blind
Joint 24,000+ 1,300 for each 65 and over or blind
Married filing Separate 12,000 + 1,300 for 65 and over or blind
