Oooh I love both those actors keberoxu! And I suppose being a psychopath doesn't protect someone from sentimentality.
Some of the prisoners I talked to 'inside' when visiting had a sentimental streak. They may have robbed old ladies, bashed people on the head and committed other violent offences, but many of them 'missed their dog'! They could also whinge/even weep like anything about silly little events, such as having a bag of sugar stolen by another inmate.
The human mind is endlessly fascinating to me!