1x07 A Time to Hate

Lilly investigates the case of Daniel Holtz, a college baseball player who was found beaten to death in an alley behind a gay bar in 1964. Daniel's mother comes to Lilly in the hopes that his killer can be brought to justice before she dies. Lilly discovers the maltreatment gay victims received in the 60's, when her investigation discloses that it may have been a policeman's nightstick that made the lethal blows.

Lilly : You didn't know your son was gay?
Helen : I didn't wanna know. And now, much too late, I realize... that kept me from really knowing him.

"Shoop Shoop Song (It's in His Kiss)" - Betty Everett
"Remember (Walkin' In The Sand)" - Shangri-Las
"I Love You, I Love You (I Will Never Let You Go)" - Ray Charles
"Town Without Pity" - Gene Pitney
"Turn! Turn! Turn! (To Everything There Is a Season)" - The Byrds

new lead: none but the fact that little was done in the original investigation and that the mother wants her son's murder solved before she dies
why it went cold: noone 'pushed' and even more police was told to lay off
assigned detective sare both dead
aftermath: Danny's mother got to meet Hank and know a little more about her son (thanks to Lil's reunion agency just like in 1x05 the Runner)

There are actually 3 persons arrested for the murder, thanks to the testimony of the policeman. We don't hear the suspect confessing, but we see him making the deposition during the closing montage.

Vera & Jeffries seem to be working full time on this job.
Scotty is doing much better this time, except for a little mistep with Tinkerbell.
The squad uses Forensics to make sure the blunt force trauma was not done by a police nightstick.
In the opening flashback, Deborah's friend is played by Superstar's Andi Simmons.