Day 20..

 Day 20: Jane helps Maura with her "jab"...it's what platonic friends do of a morning after they've woken up from their sleepover wherein they snuggled all night long...

Day 20a: Frankie gets to test out the BPD new snowmobile - it's a stylish and easily seen orange colour. He makes sure to be safe with the correct head canon..i mean head gear!

Day 20b: Meanwhile, back to the case at hand - Maura has discovered that the 2 dead criminals are related - in fact have enough alleles in common to be twins! No wonder red crowbar was trying to steal the DNA evidence!