The men in Bat Yam attacked two young Arab Israelis, one of whom was wheelchair-bound due to ALS, and shouted "Kill him, he's an Arab."
The light rail completed its first test-run between Petah Tikva and Bat Yam on Wednesday.
The dead body of a Malinois dog was discovered at the Komemiyut interchange, with police getting suspicious after noticing its legs and mouth were seemingly tied with adhesive.
Prof. Grossman of Ichilov hospital: "Adi's condition is improving. She is still hospitalized in the neurological ICU."
Defendants indiacted in Tel Aviv District Court named as Netanel Binyamin, 25, Lahav Ohanina, 18 and a 16-year-old minor who cannot be identified for legal reasons.
The victim, Said Musa of Ramle, was driving through the promenade of Bat Yam when residents discovered he was Arab, dragged him from his car and beat him.
Riots have spread across several cities throughout Israel with mixed Arab and Jewish populations.
Seven people have been killed in recent days from car accidents, with two men in their 30s killed along Route 90 in the Arava Valley on Wednesday.
Morrison had gone viral over social media for his videos of him abusing his dog, sparking a 200-strong angry mob crowding outside his apartment within an hour.