Brittney Griner remains detained in Russia
D.C. among jurisdictions participating in rollout
Former delegate challenging Republican congressman in 1st Congressional District
Homosexuality punishable by death in kingdom
Violence against LGBTQ, intersex people commonplace in country
Country's voters in 2015 rejected marriage equality law
Brenda Díaz received 14-year sentence for taking part in anti-government protest
WNBA star has been detained since February
Unclear whether government will repeal decision
BBC asked Home Affairs Minister K Shanmugam about sodomy law